diff --git a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
index 8768d50a1f..0e4c130025 100644
--- a/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
+++ b/tests/Jellyfin.Model.Tests/Dlna/StreamBuilderTests.cs
@@ -167,6 +167,18 @@ namespace Jellyfin.Model.Tests
         [InlineData("Tizen4-4K-5.1", "mkv-vp9-aac-srt-2600k", PlayMethod.DirectPlay)]
         [InlineData("Tizen4-4K-5.1", "mkv-vp9-ac3-srt-2600k", PlayMethod.DirectPlay)]
         [InlineData("Tizen4-4K-5.1", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay)]
+        // Non-HLS Progressive transcoding
+        [InlineData("Chrome-NoHLS", "mp4-h264-aac-vtt-2600k", PlayMethod.DirectPlay)] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aac-srt-2600k", PlayMethod.Transcode, TranscodeReason.AudioCodecNotSupported, "DirectStream", "http")] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacDef-srt-2600k", PlayMethod.Transcode, TranscodeReason.SecondaryAudioNotSupported, "Remux", "http")] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-aacExt-srt-2600k", PlayMethod.Transcode, TranscodeReason.AudioIsExternal, "Remux", "http")] // #6450
+        [InlineData("Chrome-NoHLS", "mp4-h264-ac3-srt-2600k", PlayMethod.Transcode, TranscodeReason.AudioCodecNotSupported, "DirectStream", "http")] // #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.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.Transcode, TranscodeReason.ContainerNotSupported, "DirectStream", "http")] // webm requested, aac not supported
+        [InlineData("Chrome-NoHLS", "mkv-vp9-ac3-srt-2600k", PlayMethod.Transcode, TranscodeReason.ContainerNotSupported | TranscodeReason.AudioCodecNotSupported, "DirectStream", "http")] // #6450
+        [InlineData("Chrome-NoHLS", "mkv-vp9-vorbis-vtt-2600k", PlayMethod.DirectPlay, (TranscodeReason)0, "Remux", "http")] // #6450
         public async Task BuildVideoItemSimple(string deviceName, string mediaSource, PlayMethod? playMethod, TranscodeReason why = default, string transcodeMode = "DirectStream", string transcodeProtocol = "")
         {
             var options = await GetMediaOptions(deviceName, mediaSource);