“Releasing the originals is kind of an oxymoron because the quality of the original is not very good. You have to go through and do a whole restoration on it, and you have to do that digitally. It’s a very, very expensive process to do it. So when we did the transfer to digital, we only transferred really the upgraded version.”
Read more: Star Wars Blu-Ray Announced for Fall 2011, Deleted Scene Revealed | /Film http://www.slashfilm.com/2010/08/14/star-wars-blu-ray-announced-for-fall-2011-deleted-scene-revealed/#ixzz0wcpxnYMM
...meh