diff --git a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
index f2e88c76ff..909de8f72f 100644
--- a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
+++ b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
@@ -21,23 +21,25 @@ namespace Jellyfin.Model.Tests
         [Theory]
         // Chrome
         [InlineData("Chrome", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Chrome", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Chrome", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [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", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.AudioCodecNotSupported, "Transcode")]
+        [InlineData("Chrome", "mp4-hevc-ac3-aacDef-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.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
-        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Firefox", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Firefox", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Firefox", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Firefox", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [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", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.AudioCodecNotSupported, "Transcode")]
+        [InlineData("Firefox", "mp4-hevc-ac3-aacDef-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.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Firefox", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
@@ -59,18 +61,20 @@ namespace Jellyfin.Model.Tests
         [InlineData("AndroidPixel", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.ContainerBitrateExceedsLimit, "Transcode")]
         // Yatse
         [InlineData("Yatse", "mp4-h264-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Yatse", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Yatse", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)]
         [InlineData("Yatse", "mp4-hevc-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Yatse", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("Yatse", "mp4-hevc-ac3-aacDef-srt-15200k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         // RokuSSPlus
         [InlineData("RokuSSPlus", "mp4-h264-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("RokuSSPlus", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450 should be DirectPlay
-        [InlineData("RokuSSPlus", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
+        [InlineData("RokuSSPlus", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("RokuSSPlus", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450 should be DirectPlay
         [InlineData("RokuSSPlus", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("RokuSSPlus", "mp4-hevc-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
-        [InlineData("RokuSSPlus", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
+        [InlineData("RokuSSPlus", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
+        [InlineData("RokuSSPlus", "mp4-hevc-ac3-aacDef-srt-15200k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
         [InlineData("RokuSSPlus", "mp4-hevc-ac3-srt-15200k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         // JellyfinMediaPlayer
         [InlineData("JellyfinMediaPlayer", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux")] // #6450
@@ -83,21 +87,24 @@ namespace Jellyfin.Model.Tests
         [InlineData("JellyfinMediaPlayer", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay)] // #6450
         // Chrome-NoHLS
         [InlineData("Chrome-NoHLS", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
-        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.DirectStream, TranscodeReason.SecondaryAudioNotSupported, "Remux")] // #6450
         [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioIsExternal)] // #6450
         [InlineData("Chrome-NoHLS", "mp4-h264-ac3-srt-2600k", PlayMethod.DirectStream, TranscodeReason.AudioCodecNotSupported)] // #6450
         [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", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.VideoCodecNotSupported | TranscodeReason.AudioCodecNotSupported, "Transcode", "http")]
+        [InlineData("Chrome-NoHLS", "mp4-hevc-ac3-aacDef-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.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")]
-        [InlineData("TranscodeMedia", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
+        [InlineData("TranscodeMedia", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "DirectStream", "HLS.mp4")]
+        [InlineData("TranscodeMedia", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
         [InlineData("TranscodeMedia", "mp4-h264-ac3-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "DirectStream", "HLS.mp4")]
         [InlineData("TranscodeMedia", "mp4-hevc-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
-        [InlineData("TranscodeMedia", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
+        [InlineData("TranscodeMedia", "mp4-hevc-ac3-aac-srt-15200k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "DirectStream", "HLS.mp4")]
+        [InlineData("TranscodeMedia", "mp4-hevc-ac3-aacDef-srt-15200k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "HLS.mp4")]
         [InlineData("TranscodeMedia", "mkv-av1-aac-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "DirectStream", "http")]
         [InlineData("TranscodeMedia", "mkv-av1-vorbis-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "Remux", "http")]
         [InlineData("TranscodeMedia", "mkv-vp9-aac-srt-2600k", PlayMethod.Transcode, TranscodeReason.DirectPlayError, "DirectStream", "http")]
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-aac-srt-2600k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-aac-srt-2600k.json
index 9d819c4ada..ede1c8d3d1 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-aac-srt-2600k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-aac-srt-2600k.json	
@@ -57,7 +57,7 @@
             "BitRate": 164741,
             "Channels": 2,
             "SampleRate": 48000,
-            "IsDefault": true,
+            "IsDefault": false,
             "Profile": "LC",
             "Index": 2,
             "Score": 203
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-srt-2600k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-srt-2600k.json
index 70bbb9d0d1..7ef2249577 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-srt-2600k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-h264-ac3-aac-srt-2600k.json	
@@ -57,7 +57,7 @@
             "BitRate": 164741,
             "Channels": 2,
             "SampleRate": 48000,
-            "IsDefault": true,
+            "IsDefault": false,
             "Profile": "LC",
             "Index": 2,
             "Score": 203
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aac-srt-15200k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aac-srt-15200k.json
index 385bb72602..84ed8b52c5 100644
--- a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aac-srt-15200k.json	
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aac-srt-15200k.json	
@@ -59,7 +59,7 @@
             "BitRate": 164741,
             "Channels": 2,
             "SampleRate": 48000,
-            "IsDefault": true,
+            "IsDefault": false,
             "Profile": "LC",
             "Index": 2,
             "Score": 203
diff --git a/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aacDef-srt-15200k.json b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aacDef-srt-15200k.json
new file mode 100644
index 0000000000..f653313b21
--- /dev/null
+++ b/tests/Jellyfin.Model.Tests/Test Data/MediaSourceInfo-mp4-hevc-ac3-aacDef-srt-15200k.json	
@@ -0,0 +1,89 @@
+{
+    "Id": "f6eab7118618ab26e61e495a1853481a",
+    "Path": "/Media/MyVideo-WEBDL-2160p.mp4",
+    "Container": "mov,mp4,m4a,3gp,3g2,mj2",
+    "Size": 6521110016,
+    "Name": "MyVideo WEBDL-2160p",
+    "ETag": "a2fb84b618ba2467fe377543f879e9bf",
+    "RunTimeTicks": 34318510080,
+    "SupportsTranscoding": true,
+    "SupportsDirectStream": true,
+    "SupportsDirectPlay": true,
+    "SupportsProbing": true,
+    "MediaStreams": [
+        {
+            "Codec": "hevc",
+            "CodecTag": "hev1",
+            "Language": "eng",
+            "ColorSpace": "bt2020nc",
+            "ColorTransfer": "smpte2084",
+            "ColorPrimaries": "bt2020",
+            "TimeBase": "1/16000",
+            "VideoRange": "HDR",
+            "DisplayTitle": "4K HEVC HDR",
+            "BitRate": 14715079,
+            "BitDepth": 8,
+            "RefFrames": 1,
+            "IsDefault": true,
+            "Height": 2160,
+            "Width": 3840,
+            "AverageFrameRate": 23.976,
+            "RealFrameRate": 23.976,
+            "Profile": "Main 10",
+            "Type": 1,
+            "AspectRatio": "16:9",
+            "PixelFormat": "yuv420p10le",
+            "Level": 150
+        },
+        {
+            "Codec": "ac3",
+            "CodecTag": "ac-3",
+            "Language": "eng",
+            "TimeBase": "1/48000",
+            "DisplayTitle": "En - Dolby Digital - 5.1 - Default",
+            "ChannelLayout": "5.1",
+            "BitRate": 384000,
+            "Channels": 6,
+            "SampleRate": 48000,
+            "IsDefault": true,
+            "Index": 1,
+            "Score": 202
+        },
+        {
+            "Codec": "aac",
+            "CodecTag": "mp4a",
+            "Language": "eng",
+            "TimeBase": "1/48000",
+            "DisplayTitle": "En - AAC - Stereo - Default",
+            "ChannelLayout": "stereo",
+            "BitRate": 164741,
+            "Channels": 2,
+            "SampleRate": 48000,
+            "IsDefault": true,
+            "Profile": "LC",
+            "Index": 2,
+            "Score": 203
+        },
+        {
+            "Codec": "srt",
+            "Language": "eng",
+            "TimeBase": "1/1000000",
+            "localizedUndefined": "Undefined",
+            "localizedDefault": "Default",
+            "localizedForced": "Forced",
+            "DisplayTitle": "En - Default",
+            "BitRate": 92,
+            "IsDefault": true,
+            "Type": 2,
+            "Index": 3,
+            "Score": 6421,
+            "IsExternal": true,
+            "IsTextSubtitleStream": true,
+            "SupportsExternalStream": true,
+            "Path": "/Media/MyVideo-WEBDL-2160p.default.eng.srt"
+        }
+    ],
+    "Bitrate": 15201382,
+    "DefaultAudioStreamIndex": 2,
+    "DefaultSubtitleStreamIndex": 3
+}