Well, OT.com is a good place to discuss it when you know the issue. To get to know it, I meant that these comparisons are far better than the DVDactive ones:
SW:
https://plus.google.com/u/0/photos/102542760950977079734/albums/5514974191245813441
ESB:
https://plus.google.com/u/0/photos/102542760950977079734/albums/5525747538664147553
ROTJ:
https://plus.google.com/u/0/photos/102542760950977079734/albums/5528361230751063825