QUOTE (Bobalong @ Mar 10 2009, 10:08 AM)

Personally, I've found a lot of the multi-channel remixes to be "gimmicky". The only multi-channel mix of a song I really felt improved the song was the DVD-A multi-channel remix of REM's Leave. Only then because I think the song was intended to assult from all sides.
There are plenty of examples of multichannel mixes that aren't "gimmicky", and even a few that ARE gimmicky that work really well (a good example of the latter is the DVD-A of Britney Spears' "In The Zone", a playful enough album sound-wise in stereo but wildly inventive in multichannel - mixed, as it was, from some 250+ tracks!)
The REM multichannel mixes are generally very good and not too showy; "Belong" off Out Of Time is especially good.
And all of the Depeche Mode multichannel mixes on SACD are superbly done and completely in keeping with the original albums' intentions (though the occasional sonic change is made which is a bit annoying).
David Bridie's "Act Of Free Choice" SACD (long deleted, it was once available direct from his management in Melbourne for $20!) contains some excellent 5.1 mixes of the album's songs, originally done for a planned DVD video release. One of the only - if not THE only - HD multichannel mixes done right here in Australia, it's subtle and intelligently mixed. Shame about the tape dropouts on the stereo version on one track, though, which proves that whoever mastered this early SACD never bothered to actually check it

Peter Gabriel's "Up" is stunning in multichannel (and a LOT better than the 5.1 remixes done by an idiot

for his video-clip compilation on DVD).
Jeff Wayne's War Of The Worlds in multichannel (easily found, the standard release is a SACD) is gobsmackingly good - literally months were spent mixing the thing with the finesse of a movie soundtrack. Multichannel suits that record *perfectly*.
Simple Minds' "New Gold Dream" on DVD-Audio (not the stereo-only SACD) is notable for the fact that the edits done on the original mixes for release are not done here - several tracks are longer. And the guy that did the 5.1 mix also took it upon himself to remix it for stereo as well (which is sacrilege, but ah well

)
There's many more.
QUOTE
Have any albums been specifically designed (from the start) to be multi-channel? Or are they all just remix's of the original 2 channel?
You mean the original multitrack recording

Yes, there have been some. Bjork's "Vespertine" and "Medulla" were, for example.