My apologies if this has been discussed somewhere, I could not find anything about this using the search function for the forums. I've noticed the Region Free Blu-ray U.K. import of the Superman Anthology can be found fairly cheap when compared to the U.S. version. My question is, does this suffer from the dreaded PAL "speed up" audio-wise when viewed on players in the U.S.? I'm familar with DVD import discs, but have no knowledge of NTSC vs. PAL when it comes to the Blu-Ray format. Thanks very much!