Native format passthrough (BD M2TS, DTS-MA/TrueHD)

[l8router]

Hi,

Last night I tried to watch an M2TS file which I remux'd from an actual BD iso. See below picture for more info on the media file (strictly BD remuxing no transcoding involved.)

Attachment 158

The pleasure was thoroughly denied when I tried to play this from Mezzmo on my Sony BDV-E970W, observed:
1. 30 seconds into the video it began stuttering every 2-3 sceonds
2. Disruptively timed out one minute into the playback
3. FFmpeg CPU usage stayed at >90%
4. Transcoding kicked in as I could see filenames with "trancoding" string in the filenames actively being generated/updated in the transcoding directory.

I had to burn it onto a BD RE 50 to watch it natively on the Blu-ray HT device (BDV-E970W).

Makes me wonder:

How do I modify the device profiles so that BD M2TS container gets passed through to the BDV "as is", preserving all of the three mandatory BD video formats (MPEG-2, H2.64/MPEG4-AVC, and VC-1) as well as audio formats all the way up to TrueHD and DTS-HD/MA/HRA?