Dear All Hope someone can help. I purchased my first blu ray disc a few days ago (the dark knight), put it my sony blu ray player, press the remote for my pioneer amp a pioneer VSX-920 and i had expected that on the LED display a "Dolby HD or true HD" display would come up, instead teh words "PCM" light up. ive looked at the manual and it doesnt explain what this means. Is this fine? Also, the dark Knight starts off full screen ( I assmume this is the IMAX aspect ratio then it goes to letter box and if youre conscious of this it becomes annoying when you watch the movie. Is there anyway I can watch the movie not in letter box ratio? Any advice would be appreciated. Cheers