I own the Pioneer Elite DV-47Ai DVD player. I was playing the Pink Floyd "Pulse" DVD which contains two DD tracks. One at 448 kbs and one at 640 kbs. My Elite player won't play the higher bit rate track only the lower bit rate. If i choose the higher bit rate track it is completely silent. the player is hooked to my receiver by the coax digital connection although i tried both the coax and the optical both to no avail. I tested another player (zenith) and it played it just fine. What gives? Is the higher bit rate audio simply not supported by my player?

Any ideas guys?

The 640k Dolby Digital track on Pink Floyd's Pulse DVD is not part of the DVD specification and some players (including your Pioneer) will not play it. The DVD spec only requires support for Dolby Digital bitrates up to 448k, but some players will play 640k tracks as well.

I think I have seen that other Pio players have this issue too.

Thanks Guys. I appreciate the clarification.