http://rubbercat.net/simpsons/dvd.html Personally I'm most looking forward to the commentary by John Swartzwelder, J.D. Salinger, and Bill Watterson and the deleted scene involving Homer defeating Cargill by way of a technicality involving the Elder Wand.
Update: There's been some confusion over this. I want to clarify: This whole thing is a joke/ hoax. But I'm pretty sure it was written by a Simpsons writer if not a bunch of them.