Hmmm...when was this announced? I mean, the entire Genesis catalog being on SACD.
As far as I know, only "The Lamb" and "Tricks" are being remixed for 5.1 hi-rez. For now. The hi-rez remix of "The Lamb" is done and has been signed-off by both Mike Rutherford and Tony Banks. The is announced on the official
Genesis website.
As for how the hi-rez remix will be released, it's tricky. Genesis is on the Atlantic label in the US, which is part of the WEA group (Warner), the main backer of the DVD-A format. However, for the rest of the world, Genesis is on, I believe, Virgin, which is a SACD backer. I have read on the Genesis forum that "The Lamb" and "Tricks" will be offered in both SACD and DVD-A. But, for now, no definitive word yet. BTW, this goes for the rumored Phil Collins hi-rez remixes as well, not to mention other artist like Dire Straits.