Janskeet said:
If Lucas really "spliced in" the CGI to permantely alter the o-negs it obvious his intention is to destroy the the best quality sources of the OT so he has an excuse to not realse them on blu-ray DVD.

I think they made some kinda special edition of an Star Trek movie some 10-15 years ago with new effects. But that couldn't be released on Blu 'cause the resolution was to low. Don't know how Lucas did from a technical view but..

In either way, I think that a lot of effects and CGI will be improved yet again when it's time for blu. The 97 Yabba was horrible and was replaced with a better one in -04. Still CGI of course, but better.

I'm guessing the original is still there and in nice condition for further improvement in the future