AntcuFaalb said: Isn't Dolby TrueHD lossless?
It is, but good luck finding an affordable encoder. If the audio tracks have to be lossless, the choices, as I see it, are DTS-HD MA or PCM. (I think that all that is needed is for the mono and stereo tracks to be encoded with AC-3 at bitrates so high that they are for all intents and purposes lossless, but no doubt some will disagree.)