I had previously submitted this thread for the video noted, but it appears to happen with a number I have acquired. Pre-transcoding does not correct the problem. I noticed something that appears to be common throughout all that have audio playback problems with DTS. When looking at the media info for each, the audio stream lists the language as "english, unknown." Other DTS audio streams that play correctly display "english" only. When I go to a header editor, the language always appears as "english" only. I cannot find how the audio stream acquires the "english, unknown" designation.