DVD Player: Samsung DVD HD-931 Reciever: Denon 3803 Connection: Digital Coax This a weird thing. My receiver doesn't recognize when my HD-931 is running Dolby Digital 5.1. It sets itself to Prologic II and won't even give an option for Dolby Digital. If the DVD player is running a DTS soundtrack then the receiver will detect that and switch to DTS. If I play the same movie with Dolby Digital 5.1 on my other DVD player (hooked up to the reciever with optical) the receiver detects the Dolby Digital right away. Same with DTS. No problem. I can't figure it out. Not the receiver because it works fine with another DVD player. Not the cable because it works fine with DTS. I don't know about the DVD player, though. If it were busted then wouldn't it just not play any sound at all under Dolby Digital? Any ideas?