I think maybe my problem is that there's no driver for the CD-ROM drive? I don't really understand how this is supposed to work. Obviously the SCSI utilities can see and access the drive and its media, but maybe that's using low-level SCSI routines, and there's some higher-level driver software necessary to use this as a Mac filesystem?

Two clues that make me suspect this:

- In Lido 7, it sees the CD-ROM drive, but when I click on it in the SCSI list, Lido just beeps and doesn't let me do anything.

- In the PC Exchange control panel, if I click Options, a dialog appears with a list of all the SCSI devices. Below the list it says "SCSI drivers will be loaded for the devices checked above". My hard drive is listed in a normal font, and I can check/uncheck it with the mouse. But the Plextor CD-ROM is listed in italics, and can't be checked.