Switching to an HD DVD from a regular dvd seems to make the audio levels off balance. The center is really low, the sub is too loud, etc. Is there an hd dvd with a setup screen similar to a regular dvd with the thx setup stuff? I have about 20 discs and I can't find a single one that has anything like that. I try to manually set things up with my spl meter but every movie is different. HELP...