I think Brian Eno and David Byrne got there ahead of these guys, about a year or two ago they released certain tracks of the seminal 'My Life in the Bush of Ghosts' album in exactly this way.
That was a huge download (all wavs version anyway), this would be enormous - hope they use FLAC!]
I would start by muting Randy . Only thing that didn't dissapoint me about that album was that I was able to sell it for what I bought it.
Cool concept though. Wish I could do that with ...And Justice for All.