Hold on. If its a plain SCSI CD drive, remember the basics.
1. Make sure that the SCSI chain is properly terminated.
2. Check to see if CD0 is in your DEVS/DOSDRIVERS drawer.
3. If its not, you'll find it in STORAGE/DOSDRIVERS, so just move it over.
4. Check what the CD0 icon has listed for a device and unit#. Click once on it and choose info from the icon menu. Change the unit # to match the number on your CD drive. The device should say SCSIdevice
That, most of the time will do it. Just remember, SCSI and IDE are two different standards. IDEfix won't work with your 3000 unless you put an IDE card on the Daughterboard.