That true. Since HD-DVD will hold 4.5 hours of High Defintion picture and 7.1 sound. It would be possible to include both originals and special editions on the same disc for that format. Using extended branching you would have to double encode every scene the Special Edition changes which would come to a 3.5 hours of movie. Thats to long for an SD-DVD to hold and still keep optimum DVD picture. It probably won't look any better then the remastered laserdiscs. An HD-DVD would be able to hold that much information and keep full HD resolution. Still it would be impossible for even an HD-DVD to hold all three versions and still keep full HD resolution.