Thanks for the reply Frank. But I've tried alsamixer with no success. I actually usually use Envy24control which seems to control most of the same settings (all of which I have at max just to be sure.) Although in the past "PCM Outs" 1 and 2 have been adequate along with DAC 1 and 2. I'm wondering if my burner has actually failed. Could it be that the digital output is broken even though the built-in DtoA is fine? The other evidence is that when I try to burn wav files to it with XcdRoast, I get: "OPC Failed". Any other ideas? Thanks, Mike <pirrone(a)localnet.com> wrote: Mike, You've got to closely scrutinize alsamixer to make sure the correct channel is unmuted and raised to the point where you will hear the CD playing. The headphone jack has nothing to do with your computer at all so it tells you nothing. The fact that your card is working and that your CD drive worked suggests the upgrade left a setting altered on the mixer. Frank