skyjedi2005 said:

This video pretty much confirms Lucas has every single stitch of film for star wars, even if it was conformed to the special edition.

http://www.starwars.com/video/view/000323.html

And it is from his own website so his the negative is no longer in existence or is destroyed is not the whole truth.

Excellent find. The video does not lie. Thanks!

A couple of quotes from the video:

"I started out as an editor, so to me, you know, saving the film is what the whole process is about. And, uh, so I've saved all my films, I've saved all the negative, I've saved everything."

"This is a classic; you don't want anything happening to it."