diff --git a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
index 2f84fa544e..d9dceee55a 100644
--- a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
+++ b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
@@ -28,7 +28,7 @@ namespace Jellyfin.Model.Tests
         [InlineData("Chrome", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         [InlineData("Chrome", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.SecondaryAudioNotSupported, "Transcode")]
         [InlineData("Chrome", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported, "Remux")] // #6450
-        [InlineData("Chrome", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Chrome", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // Firefox
         [InlineData("Firefox", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
@@ -39,7 +39,7 @@ namespace Jellyfin.Model.Tests
         [InlineData("Firefox", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         [InlineData("Firefox", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.SecondaryAudioNotSupported, "Transcode")]
         [InlineData("Firefox", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported, "Remux")] // #6450
-        [InlineData("Firefox", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Firefox", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Firefox", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // Safari
         [InlineData("SafariNext", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
@@ -90,7 +90,7 @@ namespace Jellyfin.Model.Tests
         [InlineData("Chrome-NoHLS", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode", "http")]
         [InlineData("Chrome-NoHLS", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.SecondaryAudioNotSupported, "Transcode", "http")]
         [InlineData("Chrome-NoHLS", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported, "Remux")] // #6450
-        [InlineData("Chrome-NoHLS", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Chrome-NoHLS", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome-NoHLS", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // TranscodeMedia
         [InlineData("TranscodeMedia", "mp4-h264-aac-vtt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
@@ -178,7 +178,7 @@ namespace Jellyfin.Model.Tests
         [InlineData("Chrome", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         [InlineData("Chrome", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.AudioCodecNotSupported, "Transcode")]
         [InlineData("Chrome", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported, "Remux")] // #6450
-        [InlineData("Chrome", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Chrome", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // Firefox
         [InlineData("Firefox", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
@@ -188,7 +188,7 @@ namespace Jellyfin.Model.Tests
         [InlineData("Firefox", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported, "Transcode")]
         [InlineData("Firefox", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.AudioCodecNotSupported, "Transcode")]
         [InlineData("Firefox", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported, "Remux")] // #6450
-        [InlineData("Firefox", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Firefox", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Firefox", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         // Safari
         [InlineData("SafariNext", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-av1-aac-srt-2600k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-av1-aac-srt-2600k.json
index da185aacfb..e528281bd0 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-av1-aac-srt-2600k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-av1-aac-srt-2600k.json	
@@ -1,7 +1,7 @@
 {
     "Id": "a766d122b58e45d9492d17af66748bf5",
     "Path": "/Media/MyVideo-720p.mkv",
-    "Container": "mkv,webm",
+    "Container": "mkv",
     "Size": 835317696,
     "Name": "MyVideo-1080p",
     "ETag": "579a34c6d5dfb23f61539a51220b6a23",
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-aac-srt-2600k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-aac-srt-2600k.json
index 0a85a13533..8ef10ae877 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-aac-srt-2600k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-aac-srt-2600k.json	
@@ -1,7 +1,7 @@
 {
     "Id": "a766d122b58e45d9492d17af66748bf5",
     "Path": "/Media/MyVideo-720p.mkv",
-    "Container": "mkv,webm",
+    "Container": "mkv",
     "Size": 835317696,
     "Name": "MyVideo-1080p",
     "ETag": "579a34c6d5dfb23f61539a51220b6a23",
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-ac3-srt-2600k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-ac3-srt-2600k.json
index 2b932ff52a..80a9f4103e 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-ac3-srt-2600k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mkv-vp9-ac3-srt-2600k.json	
@@ -1,7 +1,7 @@
 {
     "Id": "a766d122b58e45d9492d17af66748bf5",
     "Path": "/Media/MyVideo-720p.mkv",
-    "Container": "mkv,webm",
+    "Container": "mkv",
     "Size": 835317696,
     "Name": "MyVideo-1080p",
     "ETag": "579a34c6d5dfb23f61539a51220b6a23",