I asked the shtv forum member who worked on the 04 transfers about the OCN:

Quote:

Originally Posted by captainsolo

Vidiot, does this mean you saw the o-negs in the process of the scan?

Yes, 100% of the time. The OCNs were scanned by Post Group in Hollywood, and I did all the final color at IL+M in San Rafael in Building C (the old post building) on Kerner Blvd., using conformed 2K scans on a Quantel iQ, and a Pandora Platinum color corrector. This was from February-April of 2004.

We were using the 1999 version of the movie with some new fixes, so these were the revised effects versions from that time. Certain sequences were almost completely new, like the updated Jabba.

All I will say about the creative choices is that what you saw is exactly what the director specifically wanted. I was told several times that this was the first (and at that time, the only) video transfer Lucas had ever personally supervised.

So this means, if I'm reading correctly, that the 04 is in fact a 2K scan directly from the 97SE o-neg restoration. (I think he meant 97 instead of 99.)