I have been looking around for any blu-ray movies that have a 7.1 soundtrack but all I have found is 5.1 PCM or Dolby True HD or DTS Master lossless audio 5.1. I may be wrong, but I thought I read on DTS site that DTS-HD Master Audio was capable of 7.1 as well as the Dolby True HD. Why aren't these formats on the disc? I guess the real question may be "why aren't the studios putting these soundtracks on their discs"?