Or you could just save time, energy and duplication and all go run over here to have all your questions answered:
http://homerecording.com/bbs/index.php? or the Steve Hoffman forums
http://www.stevehoffman.tv/forums/forumdisplay.php?f=2.
Plenty of 4.0 and 5.1 cross-thread-heads over there.
If we don't educate the boys on the other related forums (and I do mean ``boys'' as the members there tend to be boys generally in their 20's and 30's compared to the membership here being men in their 40's, 50's and 60's,) then as time goes by we really WILL be the only ones that care. Then as we die off, so will the interest, and boys 2 or 3 generations out won't even know or care what a CD or a .wav file is, nevermind a multichannel LP, tape or disc.