1 files changed, 5 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index d66d0dbcb..21a3494c5 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -179,6 +179,11 @@ namespace MediaBrowser.Controller.MediaEncoding
             {
                 return null;
             }
+            // Seeing reported failures here, not sure yet if this is related to specfying input format
+            if (string.Equals(container, "m4v", StringComparison.OrdinalIgnoreCase))
+            {
+                return null;
+            }
 
             return container;
         }