It seems that the starfield used in '77 was replaced in '81. But then in 1997, the original starfield was used again.
Also, looking at screenshot 1:
http://aptirrelevance.com/otscreenshots/screenshots.php?shot=1
The unaltered dvd's have the moon on the left only half visible like the 2004 versions while every pre special edition ANH has the moon visible in full. Why is that? Does anybody know why the moon looks the same from 2004 and 1977 but not 1981-1995?
And is there any reason to leave the Look transfer up on that page? It looks makedly worse than all the others.