Mitsumi CR-48XGTE

HELP!
My Mitsumi CR-48XGTE was working perfectly. Then I used Nero 6 Ultra
Edition to back up files to CDs. Midway through the backup the CDRW
stopped working.

Here's what I've tried in no specific order:

Deleting the drive and reinstalling it(drivers).
Changing the jumper in the physical drive itself.
Changing some of the bios settings (and changing them back!)

It's driving me crazy. It will eject when told to eject and the drive
is listed in My Computer.

The light turns on for a second when I put a CD in, but then the HD
light turns on and there's nothing more from the CD.

My DVD drive is listed as the Secondary IDE Channel Master DMA on
and the CDRW is listed as the Secondary IDE Slave DMA off

I'm running W2K Pro. This drive was working before...what to do? what
to do?

Please help me someone. Thanks.