Without going into a lot of detail, I have almost completely revamped my Pro Tools LE setup to where I record mixerless and mix down directly out of Pro Tools into an Alesis Masterlink via S/PDIF. I am using balanced cables everywhere. Here's the problem: I master and burn a CD in the Masterlink, and when played on the Masterlink, it sounds great through the control room monitors and Sony headphones. I played a recent mix in my Honda CRV's crappy system, and it sounded really good. But if I play it in a PC in Windows Media Player, it sounds bass-heavy, and loaded with artifacts and distortion. I was willing to chalk it up to a bad drive or sound card, except that CDs not made on my Masterlink don't exhibit this, and I played the CD on a computer at work and, while not as bad, the problems were still there. Anybody have experience with this? I should mention right off the top that the Masterlink settings are correct. I'm thinking it might be a bit resolution issue, but that still doesn't explain why the problem wouldn't show up in any playback setup.