Get the SCSI version. And if you don't already have a SCSI controller buy an adaptec 2904CD. It's only about 40$, but it does a perfect job in steering cd-rom's and writers.
I gave up on SCSI harddisks two years ago because of the cost (nowadays I prefer storage to raw speed), but SCSI cd devices are not that much more expensive than their IDE counterparts and do a better job IMHO.