Thanks for the help Matty_Boy, L-R going in, got it. Correct me if I'm wrong, I'm still kinda new at this, but if I'm going digital out of the cd player, into a digital mixer, then out of the mixer with lightpipe cables into the computer, and then the same back out, I'm bypassing the A/D-D/A process. The reason I'm doing it this way is because my processor speed is slow(700MHz), the hard drive is a 5400rpm drive, and I get lot's of error codes if I tax the system too hard. I know, get a new mobo/cpu and HD, I did, there is compatability issues I'm dealing with, and this is what I have to work with for the time being. Thanks again.