Aren't you guys a bit off topic? You're just repeating what has been said on this site a hundred times and you're repeating it in a way that makes other people think we're a bunch of whining fanboys. Urgh, I have to stop reading this thread, I get pissed of every time.

Anyway, guiser, yes, that is right, the FLAC version is fine. The stereo and mono versions are probably fine too but there's a small chance they may not be, so as long as people are remuxing the 5.1, they may as well remux those too, just to be sure.