>>Because the biggest change, IIRC, is the Lapti Nek scene in Jabba's palace, there is a menu option to skip it entirely!
Weeellll, Lapti Nek is restored. You ARE watching the old versions when you watch the Classic Editions, any changes that slipped through are of the incredibly minor variety. There is one shot in ANH which I'm kicking myself about. =)
In this ONE case, I decided to leave in some extra footage of Oola shot in 1997, as kind of a tribute to Femi Taylor. (Jedi is poorly directed anyway and I think the scene works better with it.) The menu option is to skip that, because it wasn't in the 1983 version of course.
The interesting thing about the Classic Editions is that they combine audio from several different versions of the film to create an "ideal" sound mix which hasn't been heard before. Which I think is fun. And there's a commentary on Star Wars.