Hello Thomas!

  TM> What happens if you try to record or rewrite a CD, where the CD-
    > RW drive is master on the secondary IDE channel, and the ISO
    > image is on a drive that is slave on the secondary IDE channel?

I would try not to build a machine that way in the first place: if a
PC has two "IDE" channels I'd use one for ATA (fixed disks) and one
for ATAPI (CD-ROM, CD-RW, Tape etc).

Just my 0.02 Euro.

Regards,
  - Andy Ball.