Good grief, a Yamaha 100? That old stalwart's bound to be supported! I'm surprised it's not even supported by the basic install system, but Redhat often surprises me, whenever I have to dandle with it... Don't they have list of supported drives?
As for the ins-and-outs of what happens, Winfried Trümper's "How To" is probably your starting point (albeit, it's a bit out of date, since he claims there that USB drives aren't supported - which hasn't been true for some time, now:
http://www.tldp.org/HOWTO/CD-Writing-HOWTO.html).