Merge branch 'dev'

39 files changed, 451 insertions, 405 deletions

diff --git a/MediaBrowser.Controller/Entities/Audio/Audio.cs b/MediaBrowser.Controller/Entities/Audio/Audio.cs
index 929308ba08..fd56a6746a 100644
--- a/MediaBrowser.Controller/Entities/Audio/Audio.cs
+++ b/MediaBrowser.Controller/Entities/Audio/Audio.cs
@@ -26,7 +26,7 @@ namespace MediaBrowser.Controller.Entities.Audio
         IArchivable
     {
         public List<ChannelMediaInfo> ChannelMediaSources { get; set; }
-        
+
         public long? Size { get; set; }
         public string Container { get; set; }
         public int? TotalBitrate { get; set; }
@@ -150,12 +150,10 @@ namespace MediaBrowser.Controller.Entities.Audio
                     + (IndexNumber != null ? IndexNumber.Value.ToString("0000 - ") : "") + Name;
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
+            var list = base.GetUserDataKeys();
+
             if (ConfigurationManager.Configuration.EnableStandaloneMusicKeys)
             {
                 var songKey = IndexNumber.HasValue ? IndexNumber.Value.ToString("0000") : string.Empty;
@@ -165,7 +163,7 @@ namespace MediaBrowser.Controller.Entities.Audio
                 {
                     songKey = ParentIndexNumber.Value.ToString("0000") + "-" + songKey;
                 }
-                songKey+= Name;
+                songKey += Name;
 
                 if (!string.IsNullOrWhiteSpace(Album))
                 {
@@ -178,25 +176,25 @@ namespace MediaBrowser.Controller.Entities.Audio
                     songKey = albumArtist + "-" + songKey;
                 }
 
-                return songKey;
+                list.Insert(0, songKey);
             }
-
-            var parent = AlbumEntity;
-
-            if (parent != null)
+            else
             {
-                var parentKey = parent.GetUserDataKey();
+                var parent = AlbumEntity;
 
-                if (IndexNumber.HasValue)
+                if (parent != null && IndexNumber.HasValue)
                 {
-                    var songKey = (ParentIndexNumber != null ? ParentIndexNumber.Value.ToString("0000 - ") : "")
-                                  + IndexNumber.Value.ToString("0000 - ");
+                    list.InsertRange(0, parent.GetUserDataKeys().Select(i =>
+                    {
+                        var songKey = (ParentIndexNumber != null ? ParentIndexNumber.Value.ToString("0000 - ") : "")
+                                      + IndexNumber.Value.ToString("0000 - ");
 
-                    return parentKey + songKey;
+                        return i + songKey;
+                    }));
                 }
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
         public override UnratedItem GetBlockUnratedType()
diff --git a/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs b/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
index e6178c183b..5cb4e8c9d1 100644
--- a/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
+++ b/MediaBrowser.Controller/Entities/Audio/MusicAlbum.cs
@@ -96,36 +96,34 @@ namespace MediaBrowser.Controller.Entities.Audio
 
         public List<string> Artists { get; set; }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            var id = this.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup);
+            var list = base.GetUserDataKeys();
 
-            if (!string.IsNullOrWhiteSpace(id))
+            if (ConfigurationManager.Configuration.EnableStandaloneMusicKeys)
             {
-                return "MusicAlbum-MusicBrainzReleaseGroup-" + id;
+                var albumArtist = AlbumArtist;
+                if (!string.IsNullOrWhiteSpace(albumArtist))
+                {
+                    list.Insert(0, albumArtist + "-" + Name);
+                }
             }
 
-            id = this.GetProviderId(MetadataProviders.MusicBrainzAlbum);
+            var id = this.GetProviderId(MetadataProviders.MusicBrainzAlbum);
 
             if (!string.IsNullOrWhiteSpace(id))
             {
-                return "MusicAlbum-Musicbrainz-" + id;
+                list.Insert(0, "MusicAlbum-Musicbrainz-" + id);
             }
 
-            if (ConfigurationManager.Configuration.EnableStandaloneMusicKeys)
+            id = this.GetProviderId(MetadataProviders.MusicBrainzReleaseGroup);
+
+            if (!string.IsNullOrWhiteSpace(id))
             {
-                var albumArtist = AlbumArtist;
-                if (!string.IsNullOrWhiteSpace(albumArtist))
-                {
-                    return albumArtist + "-" + Name;
-                }
+                list.Insert(0, "MusicAlbum-MusicBrainzReleaseGroup-" + id);
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
         protected override bool GetBlockUnratedValue(UserPolicy config)
diff --git a/MediaBrowser.Controller/Entities/Audio/MusicArtist.cs b/MediaBrowser.Controller/Entities/Audio/MusicArtist.cs
index 02bcceada4..2cca632179 100644
--- a/MediaBrowser.Controller/Entities/Audio/MusicArtist.cs
+++ b/MediaBrowser.Controller/Entities/Audio/MusicArtist.cs
@@ -80,13 +80,12 @@ namespace MediaBrowser.Controller.Entities.Audio
             ProductionLocations = new List<string>();
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return GetUserDataKey(this);
+            var list = base.GetUserDataKeys();
+
+            list.InsertRange(0, GetUserDataKeys(this));
+            return list;
         }
 
         /// <summary>
@@ -121,16 +120,18 @@ namespace MediaBrowser.Controller.Entities.Audio
         /// </summary>
         /// <param name="item">The item.</param>
         /// <returns>System.String.</returns>
-        private static string GetUserDataKey(MusicArtist item)
+        private static List<string> GetUserDataKeys(MusicArtist item)
         {
+            var list = new List<string>();
             var id = item.GetProviderId(MetadataProviders.MusicBrainzArtist);
 
             if (!string.IsNullOrEmpty(id))
             {
-                return "Artist-Musicbrainz-" + id;
+                list.Add("Artist-Musicbrainz-" + id);
             }
 
-            return "Artist-" + item.Name;
+            list.Add("Artist-" + item.Name);
+            return list;
         }
 
         protected override bool GetBlockUnratedValue(UserPolicy config)
diff --git a/MediaBrowser.Controller/Entities/Audio/MusicGenre.cs b/MediaBrowser.Controller/Entities/Audio/MusicGenre.cs
index 45304d47ee..4d041264c0 100644
--- a/MediaBrowser.Controller/Entities/Audio/MusicGenre.cs
+++ b/MediaBrowser.Controller/Entities/Audio/MusicGenre.cs
@@ -10,13 +10,12 @@ namespace MediaBrowser.Controller.Entities.Audio
     /// </summary>
     public class MusicGenre : BaseItem, IItemByName
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "MusicGenre-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "MusicGenre-" + Name);
+            return list;
         }
 
         [IgnoreDataMember]
diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 475e2ace83..6bf55e108c 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -125,6 +125,8 @@ namespace MediaBrowser.Controller.Entities
             }
         }
 
+        public string OriginalTitle { get; set; }
+
         /// <summary>
         /// Gets or sets the id.
         /// </summary>
@@ -1147,6 +1149,12 @@ namespace MediaBrowser.Controller.Entities
             get { return null; }
         }
 
+        [IgnoreDataMember]
+        public virtual string PresentationUniqueKey
+        {
+            get { return Id.ToString("N"); }
+        }
+
         private string _userDataKey;
         /// <summary>
         /// Gets the user data key.
@@ -1156,7 +1164,7 @@ namespace MediaBrowser.Controller.Entities
         {
             if (string.IsNullOrWhiteSpace(_userDataKey))
             {
-                var key = CreateUserDataKey();
+                var key = GetUserDataKeys().First();
                 _userDataKey = key;
                 return key;
             }
@@ -1164,16 +1172,20 @@ namespace MediaBrowser.Controller.Entities
             return _userDataKey;
         }
 
-        protected virtual string CreateUserDataKey()
+        public virtual List<string> GetUserDataKeys()
         {
+            var list = new List<string>();
+
             if (SourceType == SourceType.Channel)
             {
                 if (!string.IsNullOrWhiteSpace(ExternalId))
                 {
-                    return ExternalId;
+                    list.Add(ExternalId);
                 }
             }
-            return Id.ToString();
+
+            list.Add(Id.ToString());
+            return list;
         }
 
         internal virtual bool IsValidFromResolver(BaseItem newItem)
@@ -1540,11 +1552,11 @@ namespace MediaBrowser.Controller.Entities
         {
             if (!string.IsNullOrEmpty(info.Path))
             {
-                var itemByPath = LibraryManager.FindByPath(info.Path);
+                var itemByPath = LibraryManager.FindByPath(info.Path, null);
 
                 if (itemByPath == null)
                 {
-                    Logger.Warn("Unable to find linked item at path {0}", info.Path);
+                    //Logger.Warn("Unable to find linked item at path {0}", info.Path);
                 }
 
                 return itemByPath;
@@ -1553,6 +1565,15 @@ namespace MediaBrowser.Controller.Entities
             return null;
         }
 
+        [IgnoreDataMember]
+        public virtual bool EnableRememberingTrackSelections
+        {
+            get
+            {
+                return true;
+            }
+        }
+
         /// <summary>
         /// Adds a studio to the item
         /// </summary>
@@ -1606,9 +1627,7 @@ namespace MediaBrowser.Controller.Entities
                 throw new ArgumentNullException();
             }
 
-            var key = GetUserDataKey();
-
-            var data = UserDataManager.GetUserData(user.Id, key);
+            var data = UserDataManager.GetUserData(user, this);
 
             if (datePlayed.HasValue)
             {
@@ -1643,9 +1662,7 @@ namespace MediaBrowser.Controller.Entities
                 throw new ArgumentNullException();
             }
 
-            var key = GetUserDataKey();
-
-            var data = UserDataManager.GetUserData(user.Id, key);
+            var data = UserDataManager.GetUserData(user, this);
 
             //I think it is okay to do this here.
             // if this is only called when a user is manually forcing something to un-played
@@ -1976,14 +1993,14 @@ namespace MediaBrowser.Controller.Entities
 
         public virtual bool IsPlayed(User user)
         {
-            var userdata = UserDataManager.GetUserData(user.Id, GetUserDataKey());
+            var userdata = UserDataManager.GetUserData(user, this);
 
             return userdata != null && userdata.Played;
         }
 
         public bool IsFavoriteOrLiked(User user)
         {
-            var userdata = UserDataManager.GetUserData(user.Id, GetUserDataKey());
+            var userdata = UserDataManager.GetUserData(user, this);
 
             return userdata != null && (userdata.IsFavorite || (userdata.Likes ?? false));
         }
@@ -1995,7 +2012,7 @@ namespace MediaBrowser.Controller.Entities
                 throw new ArgumentNullException("user");
             }
 
-            var userdata = UserDataManager.GetUserData(user.Id, GetUserDataKey());
+            var userdata = UserDataManager.GetUserData(user, this);
 
             return userdata == null || !userdata.Played;
         }
diff --git a/MediaBrowser.Controller/Entities/CollectionFolder.cs b/MediaBrowser.Controller/Entities/CollectionFolder.cs
index 4297003277..5e0cf6e88b 100644
--- a/MediaBrowser.Controller/Entities/CollectionFolder.cs
+++ b/MediaBrowser.Controller/Entities/CollectionFolder.cs
@@ -8,6 +8,7 @@ using System.Runtime.Serialization;
 using System.Threading;
 using System.Threading.Tasks;
 using CommonIO;
+using MoreLinq;
 
 namespace MediaBrowser.Controller.Entities
 {
@@ -97,7 +98,6 @@ namespace MediaBrowser.Controller.Entities
                 }
             }
 
-
             return base.IsValidFromResolver(newItem);
         }
 
@@ -200,9 +200,30 @@ namespace MediaBrowser.Controller.Entities
 
         public IEnumerable<Folder> GetPhysicalParents()
         {
-            return LibraryManager.RootFolder.Children
+            var rootChildren = LibraryManager.RootFolder.Children
                 .OfType<Folder>()
-                .Where(i => i.Path != null && PhysicalLocations.Contains(i.Path, StringComparer.OrdinalIgnoreCase));
+                .ToList();
+
+            return PhysicalLocations.Where(i => !string.Equals(i, Path, StringComparison.OrdinalIgnoreCase)).SelectMany(i => GetPhysicalParents(i, rootChildren)).DistinctBy(i => i.Id);
+        }
+
+        private IEnumerable<Folder> GetPhysicalParents(string path, List<Folder> rootChildren)
+        {
+            var result = rootChildren
+                .Where(i => string.Equals(i.Path, path, StringComparison.OrdinalIgnoreCase))
+                .ToList();
+
+            if (result.Count == 0)
+            {
+                var folder = LibraryManager.FindByPath(path, true) as Folder;
+
+                if (folder != null)
+                {
+                    result.Add(folder);
+                }
+            }
+
+            return result;
         }
 
         [IgnoreDataMember]
diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index f4cdc8fa1b..fca2c6e439 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -839,11 +839,6 @@ namespace MediaBrowser.Controller.Entities
                     Logger.Debug("Query requires post-filtering due to ItemSortBy.SeriesSortName");
                     return true;
                 }
-                if (query.SortBy.Contains(ItemSortBy.StartDate, StringComparer.OrdinalIgnoreCase))
-                {
-                    Logger.Debug("Query requires post-filtering due to ItemSortBy.StartDate");
-                    return true;
-                }
                 if (query.SortBy.Contains(ItemSortBy.Studio, StringComparer.OrdinalIgnoreCase))
                 {
                     Logger.Debug("Query requires post-filtering due to ItemSortBy.Studio");
@@ -1059,30 +1054,6 @@ namespace MediaBrowser.Controller.Entities
                 return true;
             }
 
-            if (!string.IsNullOrWhiteSpace(query.NameContains))
-            {
-                Logger.Debug("Query requires post-filtering due to NameContains");
-                return true;
-            }
-
-            if (!string.IsNullOrWhiteSpace(query.NameLessThan))
-            {
-                Logger.Debug("Query requires post-filtering due to NameLessThan");
-                return true;
-            }
-
-            if (!string.IsNullOrWhiteSpace(query.NameStartsWith))
-            {
-                Logger.Debug("Query requires post-filtering due to NameStartsWith");
-                return true;
-            }
-
-            if (!string.IsNullOrWhiteSpace(query.NameStartsWithOrGreater))
-            {
-                Logger.Debug("Query requires post-filtering due to NameStartsWithOrGreater");
-                return true;
-            }
-
             if (query.AirDays.Length > 0)
             {
                 Logger.Debug("Query requires post-filtering due to AirDays");
@@ -1635,7 +1606,7 @@ namespace MediaBrowser.Controller.Entities
 
                 var isUnplayed = true;
 
-                var itemUserData = UserDataManager.GetUserData(user.Id, child.GetUserDataKey());
+                var itemUserData = UserDataManager.GetUserData(user, child);
 
                 // Incrememt totalPercentPlayed
                 if (itemUserData != null)
diff --git a/MediaBrowser.Controller/Entities/Game.cs b/MediaBrowser.Controller/Entities/Game.cs
index e597b2a152..9ed2400469 100644
--- a/MediaBrowser.Controller/Entities/Game.cs
+++ b/MediaBrowser.Controller/Entities/Game.cs
@@ -76,15 +76,16 @@ namespace MediaBrowser.Controller.Entities
         /// </summary>
         public List<string> MultiPartGameFiles { get; set; }
 
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
+            var list = base.GetUserDataKeys();
             var id = this.GetProviderId(MetadataProviders.Gamesdb);
 
             if (!string.IsNullOrEmpty(id))
             {
-                return "Game-Gamesdb-" + id;
+                list.Insert(0, "Game-Gamesdb-" + id);
             }
-            return base.CreateUserDataKey();
+            return list;
         }
 
         public override IEnumerable<string> GetDeletePaths()
diff --git a/MediaBrowser.Controller/Entities/GameGenre.cs b/MediaBrowser.Controller/Entities/GameGenre.cs
index d2b6b48568..71028d4cf7 100644
--- a/MediaBrowser.Controller/Entities/GameGenre.cs
+++ b/MediaBrowser.Controller/Entities/GameGenre.cs
@@ -7,13 +7,12 @@ namespace MediaBrowser.Controller.Entities
 {
     public class GameGenre : BaseItem, IItemByName
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "GameGenre-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "GameGenre-" + Name);
+            return list;
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Entities/GameSystem.cs b/MediaBrowser.Controller/Entities/GameSystem.cs
index bc35c4738a..1c09ee5075 100644
--- a/MediaBrowser.Controller/Entities/GameSystem.cs
+++ b/MediaBrowser.Controller/Entities/GameSystem.cs
@@ -2,6 +2,7 @@
 using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Configuration;
 using System;
+using System.Collections.Generic;
 using MediaBrowser.Model.Users;
 
 namespace MediaBrowser.Controller.Entities
@@ -31,17 +32,15 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The game system.</value>
         public string GameSystemName { get; set; }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
+            var list = base.GetUserDataKeys();
+
             if (!string.IsNullOrEmpty(GameSystemName))
             {
-                return "GameSystem-" + GameSystemName;
+                list.Insert(0, "GameSystem-" + GameSystemName);
             }
-            return base.CreateUserDataKey();
+            return list;
         }
 
         protected override bool GetBlockUnratedValue(UserPolicy config)
diff --git a/MediaBrowser.Controller/Entities/Genre.cs b/MediaBrowser.Controller/Entities/Genre.cs
index 233e1e0fd1..fa890ad9eb 100644
--- a/MediaBrowser.Controller/Entities/Genre.cs
+++ b/MediaBrowser.Controller/Entities/Genre.cs
@@ -11,13 +11,12 @@ namespace MediaBrowser.Controller.Entities
     /// </summary>
     public class Genre : BaseItem, IItemByName
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "Genre-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "Genre-" + Name);
+            return list;
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Entities/IHasUserData.cs b/MediaBrowser.Controller/Entities/IHasUserData.cs
index 34a8208533..3e0fa3f1dc 100644
--- a/MediaBrowser.Controller/Entities/IHasUserData.cs
+++ b/MediaBrowser.Controller/Entities/IHasUserData.cs
@@ -1,4 +1,5 @@
-using MediaBrowser.Model.Dto;
+using System.Collections.Generic;
+using MediaBrowser.Model.Dto;
 
 namespace MediaBrowser.Controller.Entities
 {
@@ -13,6 +14,8 @@ namespace MediaBrowser.Controller.Entities
         /// <returns>System.String.</returns>
         string GetUserDataKey();
 
+        List<string> GetUserDataKeys();
+
         /// <summary>
         /// Fills the user data dto values.
         /// </summary>
@@ -20,5 +23,7 @@ namespace MediaBrowser.Controller.Entities
         /// <param name="userData">The user data.</param>
         /// <param name="user">The user.</param>
         void FillUserDataDtoValues(UserItemDataDto dto, UserItemData userData, User user);
+
+        bool EnableRememberingTrackSelections { get; }
     }
 }
diff --git a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
index f3b4f40534..b148251ff1 100644
--- a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
+++ b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
@@ -46,6 +46,7 @@ namespace MediaBrowser.Controller.Entities
         public string NameLessThan { get; set; }
         public string NameContains { get; set; }
 
+        public string PresentationUniqueKey { get; set; }
         public string Path { get; set; }
         
         public string Person { get; set; }
diff --git a/MediaBrowser.Controller/Entities/Movies/Movie.cs b/MediaBrowser.Controller/Entities/Movies/Movie.cs
index 4d2ca9ffea..5882b5f4dd 100644
--- a/MediaBrowser.Controller/Entities/Movies/Movie.cs
+++ b/MediaBrowser.Controller/Entities/Movies/Movie.cs
@@ -18,8 +18,6 @@ namespace MediaBrowser.Controller.Entities.Movies
     {
         public List<Guid> SpecialFeatureIds { get; set; }
 
-        public string OriginalTitle { get; set; }
-
         public List<Guid> ThemeSongIds { get; set; }
         public List<Guid> ThemeVideoIds { get; set; }
         public List<string> ProductionLocations { get; set; }
@@ -77,34 +75,6 @@ namespace MediaBrowser.Controller.Entities.Movies
             get { return TmdbCollectionName; }
             set { TmdbCollectionName = value; }
         }
-        
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
-        {
-            var key = GetMovieUserDataKey(this);
-
-            if (string.IsNullOrWhiteSpace(key))
-            {
-                key = base.CreateUserDataKey();
-            }
-
-            return key;
-        }
-
-        public static string GetMovieUserDataKey(BaseItem movie)
-        {
-            var key = movie.GetProviderId(MetadataProviders.Tmdb);
-
-            if (string.IsNullOrWhiteSpace(key))
-            {
-                key = movie.GetProviderId(MetadataProviders.Imdb);
-            }
-
-            return key;
-        }
 
         protected override async Task<bool> RefreshedOwnedItems(MetadataRefreshOptions options, List<FileSystemMetadata> fileSystemChildren, CancellationToken cancellationToken)
         {
diff --git a/MediaBrowser.Controller/Entities/MusicVideo.cs b/MediaBrowser.Controller/Entities/MusicVideo.cs
index b52f16a462..bf4c2559c5 100644
--- a/MediaBrowser.Controller/Entities/MusicVideo.cs
+++ b/MediaBrowser.Controller/Entities/MusicVideo.cs
@@ -44,15 +44,6 @@ namespace MediaBrowser.Controller.Entities
             }
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
-        {
-            return this.GetProviderId(MetadataProviders.Tmdb) ?? this.GetProviderId(MetadataProviders.Imdb) ?? base.CreateUserDataKey();
-        }
-
         public override UnratedItem GetBlockUnratedType()
         {
             return UnratedItem.Music;
diff --git a/MediaBrowser.Controller/Entities/Person.cs b/MediaBrowser.Controller/Entities/Person.cs
index 560ea6e05e..89581e967d 100644
--- a/MediaBrowser.Controller/Entities/Person.cs
+++ b/MediaBrowser.Controller/Entities/Person.cs
@@ -18,13 +18,12 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The place of birth.</value>
         public string PlaceOfBirth { get; set; }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "Person-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "Person-" + Name);
+            return list;
         }
 
         public PersonLookupInfo GetLookupInfo()
diff --git a/MediaBrowser.Controller/Entities/Studio.cs b/MediaBrowser.Controller/Entities/Studio.cs
index a55527f37b..7ceefbc6e7 100644
--- a/MediaBrowser.Controller/Entities/Studio.cs
+++ b/MediaBrowser.Controller/Entities/Studio.cs
@@ -10,13 +10,12 @@ namespace MediaBrowser.Controller.Entities
     /// </summary>
     public class Studio : BaseItem, IItemByName, IHasTags
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "Studio-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "Studio-" + Name);
+            return list;
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Entities/TV/Episode.cs b/MediaBrowser.Controller/Entities/TV/Episode.cs
index e1a91086b2..605b838cd7 100644
--- a/MediaBrowser.Controller/Entities/TV/Episode.cs
+++ b/MediaBrowser.Controller/Entities/TV/Episode.cs
@@ -58,60 +58,48 @@ namespace MediaBrowser.Controller.Entities.TV
         {
             get
             {
-                return AirsAfterSeasonNumber ?? AirsBeforeSeasonNumber ?? PhysicalSeasonNumber;
+                return AirsAfterSeasonNumber ?? AirsBeforeSeasonNumber ?? ParentIndexNumber;
             }
         }
 
         [IgnoreDataMember]
-        public int? PhysicalSeasonNumber
+        public override Folder LatestItemsIndexContainer
         {
             get
             {
-                var value = ParentIndexNumber;
-
-                if (value.HasValue)
-                {
-                    return value;
-                }
-
-                var season = Season;
-
-                return season != null ? season.IndexNumber : null;
+                return Series;
             }
         }
 
         [IgnoreDataMember]
-        public override Folder LatestItemsIndexContainer
+        public override Guid? DisplayParentId
         {
             get
             {
-                return Series;
+                return SeasonId;
             }
         }
 
         [IgnoreDataMember]
-        public override Guid? DisplayParentId
+        protected override bool EnableDefaultVideoUserDataKeys
         {
             get
             {
-                return SeasonId;
+                return false;
             }
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            var series = Series;
+            var list = base.GetUserDataKeys();
 
+            var series = Series;
             if (series != null && ParentIndexNumber.HasValue && IndexNumber.HasValue)
             {
-                return series.GetUserDataKey() + ParentIndexNumber.Value.ToString("000") + IndexNumber.Value.ToString("000");
+                list.InsertRange(0, series.GetUserDataKeys().Select(i => i + ParentIndexNumber.Value.ToString("000") + IndexNumber.Value.ToString("000")));
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
         /// <summary>
@@ -310,6 +298,19 @@ namespace MediaBrowser.Controller.Entities.TV
                 Logger.ErrorException("Error in FillMissingEpisodeNumbersFromPath. Episode: {0}", ex, Path ?? Name ?? Id.ToString());
             }
 
+            if (!ParentIndexNumber.HasValue)
+            {
+                var season = Season;
+                if (season != null)
+                {
+                    if (season.ParentIndexNumber.HasValue)
+                    {
+                        ParentIndexNumber = season.ParentIndexNumber;
+                        hasChanges = true;
+                    }
+                }
+            }
+
             return hasChanges;
         }
     }
diff --git a/MediaBrowser.Controller/Entities/TV/Season.cs b/MediaBrowser.Controller/Entities/TV/Season.cs
index acd02e8ab9..1f443071c7 100644
--- a/MediaBrowser.Controller/Entities/TV/Season.cs
+++ b/MediaBrowser.Controller/Entities/TV/Season.cs
@@ -53,19 +53,17 @@ namespace MediaBrowser.Controller.Entities.TV
             };
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            if (Series != null)
+            var list = base.GetUserDataKeys();
+
+            var series = Series;
+            if (series != null)
             {
-                var seasonNo = IndexNumber ?? 0;
-                return Series.GetUserDataKey() + seasonNo.ToString("000");
+                list.InsertRange(0, series.GetUserDataKeys().Select(i => i + (IndexNumber ?? 0).ToString("000")));
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
         /// <summary>
@@ -94,6 +92,24 @@ namespace MediaBrowser.Controller.Entities.TV
             }
         }
 
+        [IgnoreDataMember]
+        public override string PresentationUniqueKey
+        {
+            get
+            {
+                if (IndexNumber.HasValue)
+                {
+                    var series = Series;
+                    if (series != null)
+                    {
+                        return series.PresentationUniqueKey + "-" + (IndexNumber ?? 0).ToString("000");
+                    }
+                }
+
+                return base.PresentationUniqueKey;
+            }
+        }
+
         /// <summary>
         /// Creates the name of the sort.
         /// </summary>
@@ -171,16 +187,16 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public IEnumerable<Episode> GetEpisodes(User user, bool includeMissingEpisodes, bool includeVirtualUnairedEpisodes)
         {
-            var episodes = GetRecursiveChildren(user)
-                .OfType<Episode>();
-
             var series = Series;
 
             if (IndexNumber.HasValue && series != null)
             {
-                return series.GetEpisodes(user, IndexNumber.Value, includeMissingEpisodes, includeVirtualUnairedEpisodes, episodes);
+                return series.GetEpisodes(user, IndexNumber.Value, includeMissingEpisodes, includeVirtualUnairedEpisodes);
             }
 
+            var episodes = GetRecursiveChildren(user)
+                .OfType<Episode>();
+
             if (series != null && series.ContainsEpisodesWithoutSeasonFolders)
             {
                 var seasonNumber = IndexNumber;
diff --git a/MediaBrowser.Controller/Entities/TV/Series.cs b/MediaBrowser.Controller/Entities/TV/Series.cs
index 9eeb89a1fa..abca6a6431 100644
--- a/MediaBrowser.Controller/Entities/TV/Series.cs
+++ b/MediaBrowser.Controller/Entities/TV/Series.cs
@@ -19,8 +19,6 @@ namespace MediaBrowser.Controller.Entities.TV
     {
         public List<Guid> SpecialFeatureIds { get; set; }
 
-        public string OriginalTitle { get; set; }
-
         public int? AnimeSeriesIndex { get; set; }
 
         public Series()
@@ -93,25 +91,33 @@ namespace MediaBrowser.Controller.Entities.TV
             }
         }
 
+        [IgnoreDataMember]
+        public override string PresentationUniqueKey
+        {
+            get { return GetUserDataKeys().First(); }
+        }
+
         /// <summary>
         /// Gets the user data key.
         /// </summary>
         /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            var key = this.GetProviderId(MetadataProviders.Tvdb);
+            var list = base.GetUserDataKeys();
 
-            if (string.IsNullOrWhiteSpace(key))
+            var key = this.GetProviderId(MetadataProviders.Imdb);
+            if (!string.IsNullOrWhiteSpace(key))
             {
-                key = this.GetProviderId(MetadataProviders.Imdb);
+                list.Insert(0, key);
             }
 
-            if (string.IsNullOrWhiteSpace(key))
+            key = this.GetProviderId(MetadataProviders.Tvdb);
+            if (!string.IsNullOrWhiteSpace(key))
             {
-                key = base.CreateUserDataKey();
+                list.Insert(0, key);
             }
 
-            return key;
+            return list;
         }
 
         /// <summary>
@@ -128,8 +134,8 @@ namespace MediaBrowser.Controller.Entities.TV
         // Studio, Genre and Rating will all be the same so makes no sense to index by these
         protected override IEnumerable<string> GetIndexByOptions()
         {
-            return new List<string> {            
-                {"None"}, 
+            return new List<string> {
+                {"None"},
                 {"Performer"},
                 {"Director"},
                 {"Year"},
@@ -185,8 +191,28 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public IEnumerable<Season> GetSeasons(User user, bool includeMissingSeasons, bool includeVirtualUnaired)
         {
-            var seasons = base.GetChildren(user, true)
-                .OfType<Season>();
+            var seriesIds = LibraryManager.GetItemIds(new InternalItemsQuery(user)
+            {
+                PresentationUniqueKey = PresentationUniqueKey,
+                IncludeItemTypes = new[] { typeof(Series).Name }
+            });
+
+            IEnumerable<Season> seasons;
+
+            if (seriesIds.Count > 1)
+            {
+                seasons = LibraryManager.GetItemList(new InternalItemsQuery(user)
+                {
+                    AncestorIds = seriesIds.Select(i => i.ToString("N")).ToArray(),
+                    IncludeItemTypes = new[] { typeof(Season).Name },
+                    SortBy = new[] { ItemSortBy.SortName }
+
+                }).OfType<Season>();
+            }
+            else
+            {
+                seasons = base.GetChildren(user, true).OfType<Season>();
+            }
 
             if (!includeMissingSeasons && !includeVirtualUnaired)
             {
@@ -204,9 +230,7 @@ namespace MediaBrowser.Controller.Entities.TV
                 }
             }
 
-            return LibraryManager
-                .Sort(seasons, user, new[] { ItemSortBy.SortName }, SortOrder.Ascending)
-                .Cast<Season>();
+            return seasons;
         }
 
         public IEnumerable<Episode> GetEpisodes(User user)
@@ -257,7 +281,7 @@ namespace MediaBrowser.Controller.Entities.TV
             // Refresh current item
             await RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
 
-            // Refresh TV
+            // Refresh seasons
             foreach (var item in seasons)
             {
                 cancellationToken.ThrowIfCancellationRequested();
@@ -270,12 +294,30 @@ namespace MediaBrowser.Controller.Entities.TV
                 progress.Report(percent * 100);
             }
 
-            // Refresh all non-songs
+            // Refresh episodes and other children
             foreach (var item in otherItems)
             {
                 cancellationToken.ThrowIfCancellationRequested();
 
-                await item.RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
+                var skipItem = false;
+
+                var episode = item as Episode;
+
+                if (episode != null
+                    && refreshOptions.MetadataRefreshMode != MetadataRefreshMode.FullRefresh
+                    && !refreshOptions.ReplaceAllMetadata
+                    && episode.IsMissingEpisode
+                    && episode.LocationType == Model.Entities.LocationType.Virtual
+                    && episode.PremiereDate.HasValue
+                    && (DateTime.UtcNow - episode.PremiereDate.Value).TotalDays > 30)
+                {
+                    skipItem = true;
+                }
+
+                if (!skipItem)
+                {
+                    await item.RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
+                }
 
                 numComplete++;
                 double percent = numComplete;
@@ -297,18 +339,31 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public IEnumerable<Episode> GetEpisodes(User user, int seasonNumber, bool includeMissingEpisodes, bool includeVirtualUnairedEpisodes)
         {
-            return GetEpisodes(user, seasonNumber, includeMissingEpisodes, includeVirtualUnairedEpisodes,
-                new List<Episode>());
-        }
+            var seriesIds = LibraryManager.GetItemIds(new InternalItemsQuery(user)
+            {
+                PresentationUniqueKey = PresentationUniqueKey,
+                IncludeItemTypes = new[] { typeof(Series).Name }
+            });
 
-        internal IEnumerable<Episode> GetEpisodes(User user, int seasonNumber, bool includeMissingEpisodes, bool includeVirtualUnairedEpisodes, IEnumerable<Episode> additionalEpisodes)
-        {
-            var episodes = GetRecursiveChildren(user, i => i is Episode)
-                .Cast<Episode>();
+            IEnumerable<Episode> episodes;
 
-            episodes = FilterEpisodesBySeason(episodes, seasonNumber, DisplaySpecialsWithSeasons);
+            if (seriesIds.Count > 1)
+            {
+                episodes = LibraryManager.GetItemList(new InternalItemsQuery(user)
+                {
+                    AncestorIds = seriesIds.Select(i => i.ToString("N")).ToArray(),
+                    IncludeItemTypes = new[] { typeof(Episode).Name },
+                    SortBy = new[] { ItemSortBy.SortName }
 
-            episodes = episodes.Concat(additionalEpisodes).Distinct();
+                }).OfType<Episode>();
+            }
+            else
+            {
+                episodes = GetRecursiveChildren(user, i => i is Episode)
+                    .Cast<Episode>();
+            }
+
+            episodes = FilterEpisodesBySeason(episodes, seasonNumber, DisplaySpecialsWithSeasons);
 
             if (!includeMissingEpisodes)
             {
@@ -336,7 +391,7 @@ namespace MediaBrowser.Controller.Entities.TV
         {
             if (!includeSpecials || seasonNumber < 1)
             {
-                return episodes.Where(i => (i.PhysicalSeasonNumber ?? -1) == seasonNumber);
+                return episodes.Where(i => (i.ParentIndexNumber ?? -1) == seasonNumber);
             }
 
             return episodes.Where(i =>
diff --git a/MediaBrowser.Controller/Entities/Trailer.cs b/MediaBrowser.Controller/Entities/Trailer.cs
index c3e24090c3..3be2fc6243 100644
--- a/MediaBrowser.Controller/Entities/Trailer.cs
+++ b/MediaBrowser.Controller/Entities/Trailer.cs
@@ -11,7 +11,7 @@ namespace MediaBrowser.Controller.Entities
     /// <summary>
     /// Class Trailer
     /// </summary>
-    public class Trailer : Video, IHasCriticRating, IHasProductionLocations, IHasBudget, IHasKeywords, IHasTaglines, IHasMetascore, IHasLookupInfo<TrailerInfo>
+    public class Trailer : Video, IHasCriticRating, IHasProductionLocations, IHasBudget, IHasKeywords, IHasTaglines, IHasMetascore, IHasOriginalTitle, IHasLookupInfo<TrailerInfo>
     {
         public List<string> ProductionLocations { get; set; }
 
@@ -56,26 +56,6 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The revenue.</value>
         public double? Revenue { get; set; }
 
-        protected override string CreateUserDataKey()
-        {
-            var key = Movie.GetMovieUserDataKey(this);
-
-            if (!string.IsNullOrWhiteSpace(key))
-            {
-                key = key + "-trailer";
-
-                // Make sure different trailers have their own data.
-                if (RunTimeTicks.HasValue)
-                {
-                    key += "-" + RunTimeTicks.Value.ToString(CultureInfo.InvariantCulture);
-                }
-
-                return key;
-            }
-
-            return base.CreateUserDataKey();
-        }
-
         public override UnratedItem GetBlockUnratedType()
         {
             return UnratedItem.Trailer;
diff --git a/MediaBrowser.Controller/Entities/UserViewBuilder.cs b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
index db669ca37d..5a0e0b614b 100644
--- a/MediaBrowser.Controller/Entities/UserViewBuilder.cs
+++ b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
@@ -348,7 +348,7 @@ namespace MediaBrowser.Controller.Entities
                 .Where(i => !i.IsFolder)
                 .OfType<IHasAlbumArtist>();
 
-            var artists = _libraryManager.GetAlbumArtists(items).Where(i => _userDataManager.GetUserData(user.Id, i.GetUserDataKey()).IsFavorite);
+            var artists = _libraryManager.GetAlbumArtists(items).Where(i => _userDataManager.GetUserData(user, i).IsFavorite);
 
             return GetResult(artists, parent, query);
         }
@@ -1218,7 +1218,7 @@ namespace MediaBrowser.Controller.Entities
 
             if (query.IsLiked.HasValue)
             {
-                userData = userData ?? userDataManager.GetUserData(user.Id, item.GetUserDataKey());
+                userData = userData ?? userDataManager.GetUserData(user, item);
 
                 if (!userData.Likes.HasValue || userData.Likes != query.IsLiked.Value)
                 {
@@ -1228,7 +1228,7 @@ namespace MediaBrowser.Controller.Entities
 
             if (query.IsFavoriteOrLiked.HasValue)
             {
-                userData = userData ?? userDataManager.GetUserData(user.Id, item.GetUserDataKey());
+                userData = userData ?? userDataManager.GetUserData(user, item);
                 var isFavoriteOrLiked = userData.IsFavorite || (userData.Likes ?? false);
 
                 if (isFavoriteOrLiked != query.IsFavoriteOrLiked.Value)
@@ -1239,7 +1239,7 @@ namespace MediaBrowser.Controller.Entities
 
             if (query.IsFavorite.HasValue)
             {
-                userData = userData ?? userDataManager.GetUserData(user.Id, item.GetUserDataKey());
+                userData = userData ?? userDataManager.GetUserData(user, item);
 
                 if (userData.IsFavorite != query.IsFavorite.Value)
                 {
@@ -1249,7 +1249,7 @@ namespace MediaBrowser.Controller.Entities
 
             if (query.IsResumable.HasValue)
             {
-                userData = userData ?? userDataManager.GetUserData(user.Id, item.GetUserDataKey());
+                userData = userData ?? userDataManager.GetUserData(user, item);
                 var isResumable = userData.PlaybackPositionTicks > 0;
 
                 if (isResumable != query.IsResumable.Value)
diff --git a/MediaBrowser.Controller/Entities/Video.cs b/MediaBrowser.Controller/Entities/Video.cs
index 2c7d3856b3..67b710534c 100644
--- a/MediaBrowser.Controller/Entities/Video.cs
+++ b/MediaBrowser.Controller/Entities/Video.cs
@@ -44,6 +44,20 @@ namespace MediaBrowser.Controller.Entities
             }
         }
 
+        [IgnoreDataMember]
+        public override string PresentationUniqueKey
+        {
+            get
+            {
+                if (PrimaryVersionId.HasValue)
+                {
+                    return PrimaryVersionId.Value.ToString("N");
+                }
+
+                return base.PresentationUniqueKey;
+            }
+        }
+
         public long? Size { get; set; }
         public string Container { get; set; }
         public int? TotalBitrate { get; set; }
@@ -90,6 +104,14 @@ namespace MediaBrowser.Controller.Entities
         {
             get
             {
+                if (PrimaryVersionId.HasValue)
+                {
+                    var item = LibraryManager.GetItemById(PrimaryVersionId.Value) as Video;
+                    if (item != null)
+                    {
+                        return item.MediaSourceCount;
+                    }
+                }
                 return LinkedAlternateVersions.Count + LocalAlternateVersions.Count + 1;
             }
         }
@@ -131,42 +153,65 @@ namespace MediaBrowser.Controller.Entities
             return LocalAlternateVersions.Select(i => LibraryManager.GetNewItemId(i, typeof(Video)));
         }
 
-        protected override string CreateUserDataKey()
+        [IgnoreDataMember]
+        protected virtual bool EnableDefaultVideoUserDataKeys
         {
-            if (ExtraType.HasValue)
+            get
             {
-                var key = this.GetProviderId(MetadataProviders.Imdb) ?? this.GetProviderId(MetadataProviders.Tmdb);
+                return true;
+            }
+        }
+
+        public override List<string> GetUserDataKeys()
+        {
+            var list = base.GetUserDataKeys();
 
-                if (!string.IsNullOrWhiteSpace(key))
+            if (EnableDefaultVideoUserDataKeys)
+            {
+                if (ExtraType.HasValue)
                 {
-                    key = key + "-" + ExtraType.ToString().ToLower();
+                    var key = this.GetProviderId(MetadataProviders.Tmdb);
+                    if (!string.IsNullOrWhiteSpace(key))
+                    {
+                        list.Insert(0, GetUserDataKey(key));
+                    }
 
-                    // Make sure different trailers have their own data.
-                    if (RunTimeTicks.HasValue)
+                    key = this.GetProviderId(MetadataProviders.Imdb);
+                    if (!string.IsNullOrWhiteSpace(key))
                     {
-                        key += "-" + RunTimeTicks.Value.ToString(CultureInfo.InvariantCulture);
+                        list.Insert(0, GetUserDataKey(key));
+                    }
+                }
+                else
+                {
+                    var key = this.GetProviderId(MetadataProviders.Imdb);
+                    if (!string.IsNullOrWhiteSpace(key))
+                    {
+                        list.Insert(0, key);
                     }
 
-                    return key;
+                    key = this.GetProviderId(MetadataProviders.Tmdb);
+                    if (!string.IsNullOrWhiteSpace(key))
+                    {
+                        list.Insert(0, key);
+                    }
                 }
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
-        /// <summary>
-        /// Gets the linked children.
-        /// </summary>
-        /// <returns>IEnumerable{BaseItem}.</returns>
-        public IEnumerable<Video> GetAlternateVersions()
+        private string GetUserDataKey(string providerId)
         {
-            var filesWithinSameDirectory = GetLocalAlternateVersionIds()
-                .Select(i => LibraryManager.GetItemById(i))
-                .Where(i => i != null)
-                .OfType<Video>();
+            var key = providerId + "-" + ExtraType.ToString().ToLower();
 
-            return filesWithinSameDirectory.Concat(GetLinkedAlternateVersions())
-                .OrderBy(i => i.SortName);
+            // Make sure different trailers have their own data.
+            if (RunTimeTicks.HasValue)
+            {
+                key += "-" + RunTimeTicks.Value.ToString(CultureInfo.InvariantCulture);
+            }
+
+            return key;
         }
 
         public IEnumerable<Video> GetLinkedAlternateVersions()
@@ -317,6 +362,11 @@ namespace MediaBrowser.Controller.Entities
                 {
                     return false;
                 }
+
+                if (newAsVideo.VideoType != VideoType)
+                {
+                    return false;
+                }
             }
 
             return base.IsValidFromResolver(newItem);
@@ -463,6 +513,36 @@ namespace MediaBrowser.Controller.Entities
             }).FirstOrDefault();
         }
 
+        private List<Tuple<Video, MediaSourceType>> GetAllVideosForMediaSources()
+        {
+            var list = new List<Tuple<Video, MediaSourceType>>();
+
+            list.Add(new Tuple<Video, MediaSourceType>(this, MediaSourceType.Default));
+            list.AddRange(GetLinkedAlternateVersions().Select(i => new Tuple<Video, MediaSourceType>(i, MediaSourceType.Grouping)));
+
+            if (PrimaryVersionId.HasValue)
+            {
+                var primary = LibraryManager.GetItemById(PrimaryVersionId.Value) as Video;
+                if (primary != null)
+                {
+                    var existingIds = list.Select(i => i.Item1.Id).ToList();
+                    list.Add(new Tuple<Video, MediaSourceType>(primary, MediaSourceType.Grouping));
+                    list.AddRange(primary.GetLinkedAlternateVersions().Where(i => !existingIds.Contains(i.Id)).Select(i => new Tuple<Video, MediaSourceType>(i, MediaSourceType.Grouping)));
+                }
+            }
+
+            var localAlternates = list
+                .SelectMany(i => i.Item1.GetLocalAlternateVersionIds())
+                .Select(LibraryManager.GetItemById)
+                .Where(i => i != null)
+                .OfType<Video>()
+                .ToList();
+
+            list.AddRange(localAlternates.Select(i => new Tuple<Video, MediaSourceType>(i, MediaSourceType.Default)));
+
+            return list;
+        }
+
         public virtual IEnumerable<MediaSourceInfo> GetMediaSources(bool enablePathSubstitution)
         {
             if (SourceType == SourceType.Channel)
@@ -481,13 +561,8 @@ namespace MediaBrowser.Controller.Entities
                 };
             }
 
-            var item = this;
-
-            var result = item.GetAlternateVersions()
-                .Select(i => GetVersionInfo(enablePathSubstitution, i, MediaSourceType.Grouping))
-                .ToList();
-
-            result.Add(GetVersionInfo(enablePathSubstitution, item, MediaSourceType.Default));
+            var list = GetAllVideosForMediaSources();
+            var result = list.Select(i => GetVersionInfo(enablePathSubstitution, i.Item1, i.Item2)).ToList();
 
             return result.OrderBy(i =>
             {
diff --git a/MediaBrowser.Controller/Entities/Year.cs b/MediaBrowser.Controller/Entities/Year.cs
index 163dcd667c..f27ce79dd3 100644
--- a/MediaBrowser.Controller/Entities/Year.cs
+++ b/MediaBrowser.Controller/Entities/Year.cs
@@ -11,13 +11,12 @@ namespace MediaBrowser.Controller.Entities
     /// </summary>
     public class Year : BaseItem, IItemByName
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return "Year-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, "Year-" + Name);
+            return list;
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Library/ILibraryManager.cs b/MediaBrowser.Controller/Library/ILibraryManager.cs
index c8b3d51317..5388b8668f 100644
--- a/MediaBrowser.Controller/Library/ILibraryManager.cs
+++ b/MediaBrowser.Controller/Library/ILibraryManager.cs
@@ -25,7 +25,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="fileInfo">The file information.</param>
         /// <param name="parent">The parent.</param>
         /// <returns>BaseItem.</returns>
-        BaseItem ResolvePath(FileSystemMetadata fileInfo, 
+        BaseItem ResolvePath(FileSystemMetadata fileInfo,
             Folder parent = null);
 
         /// <summary>
@@ -36,9 +36,9 @@ namespace MediaBrowser.Controller.Library
         /// <param name="parent">The parent.</param>
         /// <param name="collectionType">Type of the collection.</param>
         /// <returns>List{``0}.</returns>
-        IEnumerable<BaseItem> ResolvePaths(IEnumerable<FileSystemMetadata> files, 
+        IEnumerable<BaseItem> ResolvePaths(IEnumerable<FileSystemMetadata> files,
             IDirectoryService directoryService,
-            Folder parent, string 
+            Folder parent, string
             collectionType = null);
 
         /// <summary>
@@ -59,8 +59,8 @@ namespace MediaBrowser.Controller.Library
         /// </summary>
         /// <param name="path">The path.</param>
         /// <returns>BaseItem.</returns>
-        BaseItem FindByPath(string path);
-        
+        BaseItem FindByPath(string path, bool? isFolder);
+
         /// <summary>
         /// Gets the artist.
         /// </summary>
@@ -156,7 +156,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="id">The identifier.</param>
         /// <returns>BaseItem.</returns>
         BaseItem GetMemoryItemById(Guid id);
-        
+
         /// <summary>
         /// Gets the intros.
         /// </summary>
@@ -243,6 +243,8 @@ namespace MediaBrowser.Controller.Library
         /// <returns>BaseItem.</returns>
         BaseItem RetrieveItem(Guid id);
 
+        bool IsScanRunning { get; }
+
         /// <summary>
         /// Occurs when [item added].
         /// </summary>
@@ -290,7 +292,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="path">The path.</param>
         /// <returns>System.String.</returns>
         string GetConfiguredContentType(string path);
-        
+
         /// <summary>
         /// Normalizes the root path list.
         /// </summary>
@@ -332,8 +334,8 @@ namespace MediaBrowser.Controller.Library
         Task<UserView> GetNamedView(User user,
             string name,
             string parentId,
-            string viewType, 
-            string sortName, 
+            string viewType,
+            string sortName,
             CancellationToken cancellationToken);
 
         /// <summary>
@@ -346,8 +348,8 @@ namespace MediaBrowser.Controller.Library
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Task&lt;UserView&gt;.</returns>
         Task<UserView> GetNamedView(User user,
-            string name, 
-            string viewType, 
+            string name,
+            string viewType,
             string sortName,
             CancellationToken cancellationToken);
 
@@ -393,7 +395,7 @@ namespace MediaBrowser.Controller.Library
           string viewType,
           string sortName,
           CancellationToken cancellationToken);
-        
+
         /// <summary>
         /// Determines whether [is video file] [the specified path].
         /// </summary>
@@ -477,14 +479,14 @@ namespace MediaBrowser.Controller.Library
         /// <param name="query">The query.</param>
         /// <returns>List&lt;PersonInfo&gt;.</returns>
         List<PersonInfo> GetPeople(InternalPeopleQuery query);
-        
+
         /// <summary>
         /// Gets the people items.
         /// </summary>
         /// <param name="query">The query.</param>
         /// <returns>List&lt;Person&gt;.</returns>
         List<Person> GetPeopleItems(InternalPeopleQuery query);
-        
+
         /// <summary>
         /// Gets all people names.
         /// </summary>
@@ -559,7 +561,7 @@ namespace MediaBrowser.Controller.Library
         /// <param name="query">The query.</param>
         /// <returns>QueryResult&lt;BaseItem&gt;.</returns>
         QueryResult<BaseItem> GetItemsResult(InternalItemsQuery query);
-        
+
         /// <summary>
         /// Ignores the file.
         /// </summary>
diff --git a/MediaBrowser.Controller/Library/IUserDataManager.cs b/MediaBrowser.Controller/Library/IUserDataManager.cs
index 56ac14e9df..4ff0f6439f 100644
--- a/MediaBrowser.Controller/Library/IUserDataManager.cs
+++ b/MediaBrowser.Controller/Library/IUserDataManager.cs
@@ -45,6 +45,11 @@ namespace MediaBrowser.Controller.Library
         /// <returns>Task{UserItemData}.</returns>
         UserItemData GetUserData(Guid userId, string key);
 
+        UserItemData GetUserData(IHasUserData user, IHasUserData item);
+
+        UserItemData GetUserData(string userId, IHasUserData item);
+        UserItemData GetUserData(Guid userId, IHasUserData item);
+
         /// <summary>
         /// Gets the user data dto.
         /// </summary>
diff --git a/MediaBrowser.Controller/Library/TVUtils.cs b/MediaBrowser.Controller/Library/TVUtils.cs
index f8039b2cf2..29421ebafc 100644
--- a/MediaBrowser.Controller/Library/TVUtils.cs
+++ b/MediaBrowser.Controller/Library/TVUtils.cs
@@ -15,7 +15,7 @@ namespace MediaBrowser.Controller.Library
         /// <summary>
         /// The banner URL
         /// </summary>
-        public static readonly string BannerUrl = "http://www.thetvdb.com/banners/";
+        public static readonly string BannerUrl = "https://www.thetvdb.com/banners/";
 
         /// <summary>
         /// Gets the air days.
diff --git a/MediaBrowser.Controller/Library/UserDataSaveEventArgs.cs b/MediaBrowser.Controller/Library/UserDataSaveEventArgs.cs
index ba328ff754..654c6b581b 100644
--- a/MediaBrowser.Controller/Library/UserDataSaveEventArgs.cs
+++ b/MediaBrowser.Controller/Library/UserDataSaveEventArgs.cs
@@ -1,6 +1,7 @@
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Model.Entities;
 using System;
+using System.Collections.Generic;
 
 namespace MediaBrowser.Controller.Library
 {
@@ -15,11 +16,7 @@ namespace MediaBrowser.Controller.Library
         /// <value>The user id.</value>
         public Guid UserId { get; set; }
 
-        /// <summary>
-        /// Gets or sets the key.
-        /// </summary>
-        /// <value>The key.</value>
-        public string Key { get; set; }
+        public List<string> Keys { get; set; }
 
         /// <summary>
         /// Gets or sets the save reason.
diff --git a/MediaBrowser.Controller/LiveTv/ITunerHost.cs b/MediaBrowser.Controller/LiveTv/ITunerHost.cs
index 498602ddf9..1e7aa3de5a 100644
--- a/MediaBrowser.Controller/LiveTv/ITunerHost.cs
+++ b/MediaBrowser.Controller/LiveTv/ITunerHost.cs
@@ -46,6 +46,8 @@ namespace MediaBrowser.Controller.LiveTv
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Task&lt;List&lt;MediaSourceInfo&gt;&gt;.</returns>
         Task<List<MediaSourceInfo>> GetChannelStreamMediaSources(string channelId, CancellationToken cancellationToken);
+
+        string ApplyDuration(string streamPath, TimeSpan duration);
     }
     public interface IConfigurableTunerHost
     {
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvAudioRecording.cs b/MediaBrowser.Controller/LiveTv/LiveTvAudioRecording.cs
index 17a27eac1e..e6f472414e 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvAudioRecording.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvAudioRecording.cs
@@ -46,17 +46,6 @@ namespace MediaBrowser.Controller.LiveTv
         }
 
         /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
-        {
-            var name = GetClientTypeName();
-
-            return name + "-" + Name + (EpisodeTitle ?? string.Empty);
-        }
-
-        /// <summary>
         /// Gets a value indicating whether this instance is owned item.
         /// </summary>
         /// <value><c>true</c> if this instance is owned item; otherwise, <c>false</c>.</value>
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
index 35b9a1959e..50aeed27d4 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
@@ -11,13 +11,12 @@ namespace MediaBrowser.Controller.LiveTv
 {
     public class LiveTvChannel : BaseItem, IHasMediaSources
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            return GetClientTypeName() + "-" + Name;
+            var list = base.GetUserDataKeys();
+
+            list.Insert(0, GetClientTypeName() + "-" + Name);
+            return list;
         }
 
         public override UnratedItem GetBlockUnratedType()
@@ -45,6 +44,15 @@ namespace MediaBrowser.Controller.LiveTv
             set { }
         }
 
+        [IgnoreDataMember]
+        public override bool EnableRememberingTrackSelections
+        {
+            get
+            {
+                return false;
+            }
+        }
+
         /// <summary>
         /// Gets or sets the number.
         /// </summary>
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvProgram.cs b/MediaBrowser.Controller/LiveTv/LiveTvProgram.cs
index 59b921c6a9..cc30709db2 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvProgram.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvProgram.cs
@@ -4,36 +4,40 @@ using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.LiveTv;
 using System;
+using System.Collections.Generic;
 using System.Runtime.Serialization;
+using MediaBrowser.Model.Entities;
 
 namespace MediaBrowser.Controller.LiveTv
 {
     public class LiveTvProgram : BaseItem, IHasLookupInfo<LiveTvProgramLookupInfo>, IHasStartDate, IHasProgramAttributes
     {
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
+        public override List<string> GetUserDataKeys()
         {
-            if (IsMovie)
+            var list = base.GetUserDataKeys();
+
+            if (!IsSeries)
             {
-                var key = Movie.GetMovieUserDataKey(this);
+                var key = this.GetProviderId(MetadataProviders.Imdb);
+                if (!string.IsNullOrWhiteSpace(key))
+                {
+                    list.Insert(0, key);
+                }
 
+                key = this.GetProviderId(MetadataProviders.Tmdb);
                 if (!string.IsNullOrWhiteSpace(key))
                 {
-                    return key;
+                    list.Insert(0, key);
                 }
             }
-
-            if (IsSeries && !string.IsNullOrWhiteSpace(EpisodeTitle))
+            else if (!string.IsNullOrWhiteSpace(EpisodeTitle))
             {
                 var name = GetClientTypeName();
 
-                return name + "-" + Name + (EpisodeTitle ?? string.Empty);
+                list.Insert(0, name + "-" + Name + (EpisodeTitle ?? string.Empty));
             }
 
-            return base.CreateUserDataKey();
+            return list;
         }
 
         [IgnoreDataMember]
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvVideoRecording.cs b/MediaBrowser.Controller/LiveTv/LiveTvVideoRecording.cs
index f310a957cc..a8c7376734 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvVideoRecording.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvVideoRecording.cs
@@ -45,32 +45,6 @@ namespace MediaBrowser.Controller.LiveTv
             set { }
         }
 
-        /// <summary>
-        /// Gets the user data key.
-        /// </summary>
-        /// <returns>System.String.</returns>
-        protected override string CreateUserDataKey()
-        {
-            if (IsMovie)
-            {
-                var key = Movie.GetMovieUserDataKey(this);
-
-                if (!string.IsNullOrWhiteSpace(key))
-                {
-                    return key;
-                }
-            }
-
-            if (IsSeries && !string.IsNullOrWhiteSpace(EpisodeTitle))
-            {
-                var name = GetClientTypeName();
-
-                return name + "-" + Name + (EpisodeTitle ?? string.Empty);
-            }
-
-            return base.CreateUserDataKey();
-        }
-
         [IgnoreDataMember]
         public override string MediaType
         {
diff --git a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
index d2feb41169..7c3959f6e8 100644
--- a/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
+++ b/MediaBrowser.Controller/MediaEncoding/IMediaEncoder.cs
@@ -4,13 +4,14 @@ using System;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
+using MediaBrowser.Model.Dlna;
 
 namespace MediaBrowser.Controller.MediaEncoding
 {
     /// <summary>
     /// Interface IMediaEncoder
     /// </summary>
-    public interface IMediaEncoder
+    public interface IMediaEncoder : ITranscoderSupport
     {
         /// <summary>
         /// Gets the encoder path.
diff --git a/MediaBrowser.Controller/Notifications/INotificationsRepository.cs b/MediaBrowser.Controller/Notifications/INotificationsRepository.cs
index 6ad4a5377e..cd587a5099 100644
--- a/MediaBrowser.Controller/Notifications/INotificationsRepository.cs
+++ b/MediaBrowser.Controller/Notifications/INotificationsRepository.cs
@@ -19,12 +19,6 @@ namespace MediaBrowser.Controller.Notifications
         /// Occurs when [notifications marked read].
         /// </summary>
         event EventHandler<NotificationReadEventArgs> NotificationsMarkedRead;
-
-        /// <summary>
-        /// Opens the connection to the repository
-        /// </summary>
-        /// <returns>Task.</returns>
-        Task Initialize();
         
         /// <summary>
         /// Gets the notifications.
diff --git a/MediaBrowser.Controller/Persistence/IDisplayPreferencesRepository.cs b/MediaBrowser.Controller/Persistence/IDisplayPreferencesRepository.cs
index 17de730cb8..abf96994f1 100644
--- a/MediaBrowser.Controller/Persistence/IDisplayPreferencesRepository.cs
+++ b/MediaBrowser.Controller/Persistence/IDisplayPreferencesRepository.cs
@@ -12,12 +12,6 @@ namespace MediaBrowser.Controller.Persistence
     public interface IDisplayPreferencesRepository : IRepository
     {
         /// <summary>
-        /// Opens the connection to the repository
-        /// </summary>
-        /// <returns>Task.</returns>
-        Task Initialize();
-
-        /// <summary>
         /// Saves display preferences for an item
         /// </summary>
         /// <param name="displayPreferences">The display preferences.</param>
diff --git a/MediaBrowser.Controller/Persistence/IItemRepository.cs b/MediaBrowser.Controller/Persistence/IItemRepository.cs
index 15df1f6492..7bcc36958a 100644
--- a/MediaBrowser.Controller/Persistence/IItemRepository.cs
+++ b/MediaBrowser.Controller/Persistence/IItemRepository.cs
@@ -14,12 +14,6 @@ namespace MediaBrowser.Controller.Persistence
     public interface IItemRepository : IRepository
     {
         /// <summary>
-        /// Opens the connection to the repository
-        /// </summary>
-        /// <returns>Task.</returns>
-        Task Initialize();
-
-        /// <summary>
         /// Saves an item
         /// </summary>
         /// <param name="item">The item.</param>
diff --git a/MediaBrowser.Controller/Persistence/IUserDataRepository.cs b/MediaBrowser.Controller/Persistence/IUserDataRepository.cs
index 2a904be0d9..2e165f4163 100644
--- a/MediaBrowser.Controller/Persistence/IUserDataRepository.cs
+++ b/MediaBrowser.Controller/Persistence/IUserDataRepository.cs
@@ -12,12 +12,6 @@ namespace MediaBrowser.Controller.Persistence
     public interface IUserDataRepository : IRepository
     {
         /// <summary>
-        /// Opens the connection to the repository
-        /// </summary>
-        /// <returns>Task.</returns>
-        Task Initialize();
-
-        /// <summary>
         /// Saves the user data.
         /// </summary>
         /// <param name="userId">The user id.</param>
diff --git a/MediaBrowser.Controller/Providers/IProviderRepository.cs b/MediaBrowser.Controller/Providers/IProviderRepository.cs
index 1f77d0ca1c..891275d775 100644
--- a/MediaBrowser.Controller/Providers/IProviderRepository.cs
+++ b/MediaBrowser.Controller/Providers/IProviderRepository.cs
@@ -21,11 +21,5 @@ namespace MediaBrowser.Controller.Providers
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Task.</returns>
         Task SaveMetadataStatus(MetadataStatus status, CancellationToken cancellationToken);
-
-        /// <summary>
-        /// Initializes this instance.
-        /// </summary>
-        /// <returns>Task.</returns>
-        Task Initialize();
     }
 }