With the SCSI controller on the CSPPC, there shouldn't be a problem. Just get the correct drive and/or adaptor, and off you go.
I'm using 2 x IDE CD-RW drives, connected to the SCSI chain through an adaptor, and it works great. Last time I burned a CD from ISO, it took around 3 minutes to burn 600 MB. I'm soon going to replace both CD-RW drives with DVD-RW drives, and try it out to see if I can burn DVD discs.