Hrrrm
Make sure you have L/AmiCDFS in there and you edit the file that the
CD0: icon represents so that it's settings are dedicated to your
CD-ROM.
However you should check first if the drive is appearing on the SCSI
chain first, I would reccomend Phase5 UnitControl v2.17 or whatever
else is out there and put in your squirrelscsi.device.
It must show on the chain before the CD0: mountfile will work, it's
possible you have 2x devices with the same SCSI ID so check on the
back of your drives and see the ID wheel/jumpers are different for
each seperate drive.
This is quite strange, keep posting!