I realize that this may not be very helpful, but are you really
committed to CDs as backup.  I thought I was, tried what seemed like a
zillion packages, then gave up and bought a used SCSI tape drive for
$2.....

These seem to be kicking around various places for under $10....

About $50 of DATs later on + an install of taper, and I'm much
happier.

Best,
R