initial support of multiple movies in folder

MediaBrowser.Controller/Entities/Video.cs

@@ -65,6 +65,8 @@ namespace MediaBrowser.Controller.Entities
             return GetPlayableStreamFiles(Path);
         }
 
+        public bool IsInMixedFolder { get; set; }
+
         /// <summary>
         /// Should be overridden to return the proper folder where metadata lives
         /// </summary>
@@ -86,6 +88,11 @@ namespace MediaBrowser.Controller.Entities
         {
             get
             {
+                if (IsInMixedFolder)
+                {
+                    return false;
+                }
+
                 return VideoType == VideoType.VideoFile || VideoType == VideoType.Iso || IsMultiPart;
             }
         }