I recently bought a Denon AVR 4500 and I connected all the peripherals to it (CD player, Cable Box, Smart Tv, Blu Ray player, etc.). Everything works fine execpt for the blu ray player that shows video properly but no sound at all. I did the usual of changing the blu ray disk for a regular DVD, even for an audio CD, nothing change, still no sound. Also changed the HDMI cable for one is working fine (cable box one) and used the one used for the blu ray player for the cable box... Cable works fine but still no sound from the blu ray player. I am starting to consider if the blu ray player is broken or simpky too old and there is something to do with the HDMI or DTS support. My question is, does a blu ray player have a diferent reading device for video and for sound ?