Well to try to look into this properly I've just put a 50 pin SCSI CDrom on an Oktagon SCSI card in an A4000 for the very first time :banana:
I then modified a Workbench 3.1 floppy disk adding 'CDFileSystem' to the L drawer and a CD0 in Devs/DOSDrivers set to 'oktagon.device' and Unit 1. When Booting into this floppy I get an icon on screen for a CD :-)
However, I do *not* get an icon for audio CD's. The CD's must have a 'Disk.info' file on them as with Amiga mag cover CD's, OS3.5 CD, OS3.9 CD, Amiga games CD's or CD32 games CD's etc. Most Amiga floppy disks have a 'Disk.info' file on them as well. This gives them their particular icon on screen mate.
@hamtronix
What CD's are you trying in your CDrom drive mate??
Also try the good suggestion in the post above. I get "CD0: No disk present" if an audio CD is inserted, and CD0: plus the name and capacity of a CD containing a 'Disk.info' file.
Oh.... and check you E-mail mate :-D