According to some posts I've read elsewhere the discs are causing DVD players and/or TVs/projectors that have separate modes for film and video source material to switch modes whenever a CGI or composite shot comes on-screen. This actually makes the images look worse than they should. The fix seems to be to change the setup from "auto" to "video" This elmininates the mode switch, which seems to add the "artifacts" which some reviews mention, but which many viewers (with older or cheaper equipment, like me

) have never observed.
Regards,
Joe