I checked the 34gb HDTV version from rutracker and it seems to be the Wookiegroomer already color corrected version of Episode 1. That one has a lot more detail and quality than my 4gb version, which is a plus, but I am not too fond of the colors, since they are a bit on the pale side.
I'll try to tweak them toward the "THX Demo PodRace" - Scene (as seen in my corrected screen-shots), but If anyone knows a link or still has the not color corrected HDTV version, please let me know. It should make a better starting point.
I'll keep you posted!

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