Thanks a lot, marvins! Great job. ;)
Indeed, the Greedo scene is VERY dark. We can barely see something...
the THX edition is better, but the subtitles are a little strange, they're not exactly the same as the original ones.
I've noticed that the THX edition is presented with the typical 4% speed up, but they changed the tempo only, the original pitch is preserved.
The 1st edition is speeded up by using the classical way (tempo+pitch).