Thank you for the superb explanation. I guess I had a vague memory about how DTS-HD works and assumed that TrueHD worked the same way.nekno wrote: ↑Sat Feb 12, 2022 1:37 amEncoding DTS-HD takes in a lossless LPCM stream, encodes a lossy DTS core, and saves the rest of the discarded audio as lossless extensions. When decoding, the extensions are recombined with the lossy DTS core and decoded to arrive at the original lossless stream.
[...]
A TrueHD+AC3 track has audio frames alternating between TrueHD and AC3. It's just two completely separate streams interleaved into a single track, kind of how STDL puts two distinct video streams into separate NALUs of a single track.
I hadn't heard of that tool, and didn't know about the old MakeMKV bug that it was made to address, so now I have even more re-ripping to donekno wrote: ↑Sat Feb 12, 2022 1:37 amThe mlp tool for accurately/losslessly editing THD streams has an open issue requesting support, but there's no activity on it.

