Originally Posted by aaronwt
The restriction is from Sony not allowing their players to play that audio back from an mkv.
That’s what I meant, yes. Maybe did not express muself clearly enough.
But this is Sony-specific limitation.
Then again, TrueHD tracks get packed inside MKV with additional AC3 track that is not there on pure bluray rips. Check the m2ts file off of a Dolby Atmos demo disc. They contain only 2 audio tracks: TrueHD and DD+, without the third AC3 track that apprars as soon as you convert it to MKV.
Also, to be able to mux TrueHD Atmos track with TSMuxeR you’d need to use eac3to.exe to pull special thd+ac3 “combined” track from MKV that can be muxed into bluray format.
Can well be that on bluray MLP and AC3 frames are interleaved in single elementary stream that gets pulled apart into 2 separate streams in MKV.
In general, I consider Sony’s player software to be quite strictly following the specifications. As a minimum - if it plays on Sony, it will play everywhere.
That’s just my opinion, though.
PS I have to admit, it weirdly interprets same streams differently, depending on the container.