Here's the interview with Lucas:

http://www.cnn.com/2004/SHOWBIZ/Movies/09/20/film.qa.george.lucas.ap/index.html

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'I'm making the movies'
Q: Why not release both the originals and special editions on DVD?

LUCAS: The special edition, that's the one I wanted out there. The other movie, it's on VHS, if anybody wants it. ...
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Actually, the Laserdiscs would be the best edition