diff --git a/MediaBrowser.Api/Library/LibraryStructureService.cs b/MediaBrowser.Api/Library/LibraryStructureService.cs
index dd3c7211a..72966a7cd 100644
--- a/MediaBrowser.Api/Library/LibraryStructureService.cs
+++ b/MediaBrowser.Api/Library/LibraryStructureService.cs
@@ -11,6 +11,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using CommonIO;
 using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Entities;
 using MediaBrowser.Model.Configuration;
 
 namespace MediaBrowser.Api.Library
@@ -140,6 +141,14 @@ namespace MediaBrowser.Api.Library
         public bool RefreshLibrary { get; set; }
     }
 
+    [Route("/Library/VirtualFolders/LibraryOptions", "POST")]
+    public class UpdateLibraryOptions : IReturnVoid
+    {
+        public string Id { get; set; }
+
+        public LibraryOptions LibraryOptions { get; set; }
+    }
+
     /// <summary>
     /// Class LibraryStructureService
     /// </summary>
@@ -188,6 +197,13 @@ namespace MediaBrowser.Api.Library
             return ToOptimizedSerializedResultUsingCache(result);
         }
 
+        public void Post(UpdateLibraryOptions request)
+        {
+            var collectionFolder = (CollectionFolder)_libraryManager.GetItemById(request.Id);
+
+            collectionFolder.UpdateLibraryOptions(request.LibraryOptions);
+        }
+
         /// <summary>
         /// Posts the specified request.
         /// </summary>
@@ -220,12 +236,12 @@ namespace MediaBrowser.Api.Library
             var currentPath = Path.Combine(rootFolderPath, request.Name);
             var newPath = Path.Combine(rootFolderPath, request.NewName);
 
-			if (!_fileSystem.DirectoryExists(currentPath))
+            if (!_fileSystem.DirectoryExists(currentPath))
             {
                 throw new DirectoryNotFoundException("The media collection does not exist");
             }
 
-			if (!string.Equals(currentPath, newPath, StringComparison.OrdinalIgnoreCase) && _fileSystem.DirectoryExists(newPath))
+            if (!string.Equals(currentPath, newPath, StringComparison.OrdinalIgnoreCase) && _fileSystem.DirectoryExists(newPath))
             {
                 throw new ArgumentException("There is already a media collection with the name " + newPath + ".");
             }
@@ -240,11 +256,11 @@ namespace MediaBrowser.Api.Library
                     //Create an unique name
                     var temporaryName = Guid.NewGuid().ToString();
                     var temporaryPath = Path.Combine(rootFolderPath, temporaryName);
-					_fileSystem.MoveDirectory(currentPath, temporaryPath);
+                    _fileSystem.MoveDirectory(currentPath, temporaryPath);
                     currentPath = temporaryPath;
                 }
 
-				_fileSystem.MoveDirectory(currentPath, newPath);
+                _fileSystem.MoveDirectory(currentPath, newPath);
             }
             finally
             {
diff --git a/MediaBrowser.Api/Playback/MediaInfoService.cs b/MediaBrowser.Api/Playback/MediaInfoService.cs
index 0b989784c..91e62b4e3 100644
--- a/MediaBrowser.Api/Playback/MediaInfoService.cs
+++ b/MediaBrowser.Api/Playback/MediaInfoService.cs
@@ -284,6 +284,13 @@ namespace MediaBrowser.Api.Playback
                         options.ForceDirectPlay = true;
                     }
                 }
+                else if (item is Video)
+                {
+                    if (!user.Policy.EnableAudioPlaybackTranscoding && !user.Policy.EnableVideoPlaybackTranscoding && !user.Policy.EnablePlaybackRemuxing)
+                    {
+                        options.ForceDirectPlay = true;
+                    }
+                }
 
                 // The MediaSource supports direct stream, now test to see if the client supports it
                 var streamInfo = string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase) ?
@@ -315,6 +322,13 @@ namespace MediaBrowser.Api.Playback
                         options.ForceDirectStream = true;
                     }
                 }
+                else if (item is Video)
+                {
+                    if (!user.Policy.EnableAudioPlaybackTranscoding && !user.Policy.EnableVideoPlaybackTranscoding && !user.Policy.EnablePlaybackRemuxing)
+                    {
+                        options.ForceDirectStream = true;
+                    }
+                }
 
                 // The MediaSource supports direct stream, now test to see if the client supports it
                 var streamInfo = string.Equals(item.MediaType, MediaType.Audio, StringComparison.OrdinalIgnoreCase) ?
diff --git a/MediaBrowser.Controller/Entities/CollectionFolder.cs b/MediaBrowser.Controller/Entities/CollectionFolder.cs
index b81f021da..e120f2e23 100644
--- a/MediaBrowser.Controller/Entities/CollectionFolder.cs
+++ b/MediaBrowser.Controller/Entities/CollectionFolder.cs
@@ -95,9 +95,19 @@ namespace MediaBrowser.Controller.Entities
             return System.IO.Path.Combine(path, "options.xml");
         }
 
+        public void UpdateLibraryOptions(LibraryOptions options)
+        {
+            SaveLibraryOptions(Path, options);
+        }
+
         public static void SaveLibraryOptions(string path, LibraryOptions options)
         {
-            XmlSerializer.SerializeToFile(options, GetLibraryOptionsPath(path));
+            lock (LibraryOptions)
+            {
+                LibraryOptions[path] = options;
+
+                XmlSerializer.SerializeToFile(options, GetLibraryOptionsPath(path));
+            }
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Entities/Movies/BoxSet.cs b/MediaBrowser.Controller/Entities/Movies/BoxSet.cs
index 742ade200..caf440a83 100644
--- a/MediaBrowser.Controller/Entities/Movies/BoxSet.cs
+++ b/MediaBrowser.Controller/Entities/Movies/BoxSet.cs
@@ -110,8 +110,7 @@ namespace MediaBrowser.Controller.Entities.Movies
         {
             get
             {
-                // TODO
-                return false;
+                return !FileSystem.ContainsSubPath(ConfigurationManager.ApplicationPaths.DataPath, Path);
             }
         }
 
diff --git a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs b/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs
index ed18fed65..fb353b016 100644
--- a/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs
+++ b/MediaBrowser.Model/Dlna/ResolutionNormalizer.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using MediaBrowser.Model.Extensions;
 
 namespace MediaBrowser.Model.Dlna
 {
@@ -59,8 +60,8 @@ namespace MediaBrowser.Model.Dlna
 
         private static double GetVideoBitrateScaleFactor(string codec)
         {
-            if (string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase) ||
-                string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase))
+            if (StringHelper.EqualsIgnoreCase(codec, "h265") ||
+                StringHelper.EqualsIgnoreCase(codec, "hevc"))
             {
                 return .5;
             }
diff --git a/MediaBrowser.Model/Users/UserPolicy.cs b/MediaBrowser.Model/Users/UserPolicy.cs
index 16b4b673d..3917b1662 100644
--- a/MediaBrowser.Model/Users/UserPolicy.cs
+++ b/MediaBrowser.Model/Users/UserPolicy.cs
@@ -41,6 +41,7 @@ namespace MediaBrowser.Model.Users
         public bool EnableMediaPlayback { get; set; }
         public bool EnableAudioPlaybackTranscoding { get; set; }
         public bool EnableVideoPlaybackTranscoding { get; set; }
+        public bool EnablePlaybackRemuxing { get; set; }
 
         public bool EnableContentDeletion { get; set; }
         public bool EnableContentDownloading { get; set; }
@@ -76,6 +77,7 @@ namespace MediaBrowser.Model.Users
             EnableMediaPlayback = true;
             EnableAudioPlaybackTranscoding = true;
             EnableVideoPlaybackTranscoding = true;
+            EnablePlaybackRemuxing = true;
 
             EnableLiveTvManagement = true;
             EnableLiveTvAccess = true;
diff --git a/MediaBrowser.Server.Implementations/Collections/CollectionsDynamicFolder.cs b/MediaBrowser.Server.Implementations/Collections/CollectionsDynamicFolder.cs
index cb95bfd14..6cd9e9620 100644
--- a/MediaBrowser.Server.Implementations/Collections/CollectionsDynamicFolder.cs
+++ b/MediaBrowser.Server.Implementations/Collections/CollectionsDynamicFolder.cs
@@ -8,7 +8,7 @@ namespace MediaBrowser.Server.Implementations.Collections
     public class CollectionsDynamicFolder : IVirtualFolderCreator
     {
         private readonly IApplicationPaths _appPaths;
-        private IFileSystem _fileSystem;
+        private readonly IFileSystem _fileSystem;
 
         public CollectionsDynamicFolder(IApplicationPaths appPaths, IFileSystem fileSystem)
         {
diff --git a/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs b/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
index 194904320..27065d0f5 100644
--- a/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
+++ b/MediaBrowser.Server.Implementations/HttpServer/HttpResultFactory.cs
@@ -534,7 +534,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
             if (lastDateModified.HasValue && (string.IsNullOrEmpty(cacheKey) || cacheDuration.HasValue))
             {
                 AddAgeHeader(responseHeaders, lastDateModified);
-                responseHeaders["LastModified"] = lastDateModified.Value.ToString("r");
+                responseHeaders["Last-Modified"] = lastDateModified.Value.ToString("r");
             }
 
             if (cacheDuration.HasValue)