Most of my BD-s includes DTS-HD and AC3 tracks that I want to keep per disc. In case of chosing mkv container as an output is it possible to reencode the DTS-HD track to AC3 using the bitrate chosen in the mkv profile and keep the AC3 track intact without reencoding at the same time? I found that BD-RB wants to reencode the AC3 track as well (regardless of it's original bitrate) to the bitrate chosen in the mkv profile. (I do not want to reencode a lower or equal bitrate AC3 track to a higher or same bitrate track but at the same time I want to use 640 kbit/s for the DTS-HD track).
Please help.
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