TServo2049 said:

Both versions switch to an inferior print for the Greedo scene, suggesting that the main print had the burned-in English subtitles. So it seems that they used an English source, and swapped in the French and German crawls/credits in the video editing stage.

However, I'm not sure if the cut was done during the iris, or at the start of the final group shot. If it was the latter, then this weird edit is a real film edit. (Anybody know how the transition looked in the German closing?)

It seems like this is a real film edit. Look at the video ripped from my LD : http://www.youtube.com/watch?v=8rP37uO7SzM

The final group shot has a bad quality compare to the previous shot, especially the colors. It's the same that what you described about the Greedo scene.