hello- If I have a DVD that has 5.1 EX encoded on the disc but for some reason, my receiver does not pickup the EX flag. When I tried a buddies copy of the same exact movie (Star Wars Episode II), it DID read the EX flag!! I have a 5.1 setup, so my question is, if I replace my copy w/one that allows the receiver to read the EX flag, is there any sound difference? Or is the "EX" light just not coming on? Does this make sense? Thanks for your help!!