Karlos is right Amigaboy.
Your SquirrelSCSI disk (if it came with the device) should have a SCSI detection program which will tell you what unit # your CD drive is set at. Make sure it doesn't conflict with anything else you might have on your SCSI chain. If not, be sure the CD drive is properly terminated.
With a text editor, edit the CD0: (in your DEVS drawer)(if its not there, look in STORAGE drawer) to the unit number of your drive and SQUIRRELSCSI.DEVICE
You'll see where those two go.
