1 files changed, 17 insertions, 2 deletions
diff --git a/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs b/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
index 9c76680c7..a1b7be906 100644
--- a/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
+++ b/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
@@ -1,4 +1,5 @@
-using MediaBrowser.Controller.Entities;
+using System.Text.RegularExpressions;
+using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.IO;
 using System;
 using System.Collections.Generic;
@@ -45,6 +46,20 @@ namespace MediaBrowser.Controller.Resolvers
                 ".mts"
         };
 
+        private static readonly Regex MultiFileRegex = new Regex(
+            @"(.*?)([ _.-]*(?:cd|dvd|p(?:ar)?t|dis[ck]|d)[ _.-]*[0-9]+)(.*?)(\.[^.]+)$",
+            RegexOptions.Compiled);
+
+        /// <summary>
+        /// Determines whether [is multi part file] [the specified path].
+        /// </summary>
+        /// <param name="path">The path.</param>
+        /// <returns><c>true</c> if [is multi part file] [the specified path]; otherwise, <c>false</c>.</returns>
+        public static bool IsMultiPartFile(string path)
+        {
+            return MultiFileRegex.Match(path).Success;
+        }
+
         /// <summary>
         /// The audio file extensions
         /// </summary>
@@ -96,7 +111,7 @@ namespace MediaBrowser.Controller.Resolvers
             }
 
             // See if a different path came out of the resolver than what went in
-            if (!args.Path.Equals(item.Path, StringComparison.OrdinalIgnoreCase))
+            if (!string.Equals(args.Path, item.Path, StringComparison.OrdinalIgnoreCase))
             {
                 var childData = args.IsDirectory ? args.GetFileSystemEntryByPath(item.Path) : null;