I have sort of become the unofficial geek for my friends regarding home theater. Anyhow I am setting my friend up on a system and he is trying to decide if he wants to go for a 7.1 system. I told him that as far as movies (blu-ray of course) go they are few and far between, and he won't be able to get at least half of those that are out (PS3 / DTS-MA problem)... but who knows what the future holds.
Anyhow, I obviously informed him about lossless audio and he is going to go with a receiver capable of accepting all formats, but he asked me what would happen in the instances of the 7.1 LPCM tracks. Would he be able to select that and get 5.1 LPCM, or does he have to go with the 5.1 DD track.