bitstream traffic jam?

[illwill]

so for the last month or two i have had this problem where my dvd player (a cambridge azur 540d) stops outputting digital signal almost completely (both coax & optical) after about half an hour of playing a disc (i've tried this with both video dvds and audio cds.)

i finally got around to hooking up the 5.1 out from the player to my receiver and was playing around with settings somewhat. this player has a function which limits the output rate on the digital out (i have no idea why you would want to do this... in case you have an old receiver/dac that can't handle it?) which was set to limit it to 48khz. just for kicks i moved it up to 96khz (it does 48, 96 or 192) and i have now just completed watching a movie through the digital out with no problems whatsoever.

is it possible that my player was downconverting the dvd audio track to 48khz (i think they're all encoded at 96?) and somehow the algorithm or chip that does this is getting blocked up somehow? often changing tracks will temporarily fix the problem, so i don't know if data was getting slowly misaligned as it went through a track, and would fix itself with a laser move?

even if this down-converting chip problem (and i would still consdier it a problem, even if now i might be able to work around it) was the cause of my woes, I'm not sure why that would explain the problems with cd audio, considering it is 44.1 khz... unless those two get interlaced to form a 88.2khz stream? i don't know


any ideas?

[Sir Terrence the Terrible]

so for the last month or two i have had this problem where my dvd player (a cambridge azur 540d) stops outputting digital signal almost completely (both coax & optical) after about half an hour of playing a disc (i've tried this with both video dvds and audio cds.)

i finally got around to hooking up the 5.1 out from the player to my receiver and was playing around with settings somewhat. this player has a function which limits the output rate on the digital out (i have no idea why you would want to do this... in case you have an old receiver/dac that can't handle it?) which was set to limit it to 48khz. just for kicks i moved it up to 96khz (it does 48, 96 or 192) and i have now just completed watching a movie through the digital out with no problems whatsoever.

is it possible that my player was downconverting the dvd audio track to 48khz (i think they're all encoded at 96?) and somehow the algorithm or chip that does this is getting blocked up somehow? often changing tracks will temporarily fix the problem, so i don't know if data was getting slowly misaligned as it went through a track, and would fix itself with a laser move?

even if this down-converting chip problem (and i would still consdier it a problem, even if now i might be able to work around it) was the cause of my woes, I'm not sure why that would explain the problems with cd audio, considering it is 44.1 khz... unless those two get interlaced to form a 88.2khz stream? i don't know


any ideas?

This sounds to me like you player is losing lock on the bitstream. I am not sure what can remedy this situation other than just replacing the player itself. A lens cleaner might help, but I don't know.