I decided to put some music onto minidiscs for the car - bought one of those yokes that plugs into the tape player (argh, I want a car CD player; in fact I want a better car *with* a CD player... and throw in a good job, lots of money... )

Anyway, I plugged in the USB devide to the minidisc and tried to record; couldn't remember if I was supposed to plug the other end into the microphone jack (logical), the Line In jack or the speaker jack. Tried it with all of them; the thing appeared to record, but nothing played.

Then I tried playing the CD on the computer, and no sound came out either. Tried a different CD, no sound. But the system sounds are working all right, and you can hear the modem dialling.

I've obviously killed the CD sound; iTunes apparently plays the CD, but thar ain't no bluegrass comin' outa them thar speakers. And yes, I've tried the CD on another player, and tried a different CD on the computer.

Tried messing with the Sound control panel; no luck. Tried restarting; tried running Disk Warrior. Help!