Yes, I methodically tried tried quite a few IDs. In the IIci, it was the only device on bus 0, and the CD-ROM was the only device on bus 1. So there should have been no conflict anyway.

As I was saying, I tried to run some diagnostics on the drive in a working system, and it (the drive) seems to have some hardware malfunction. So I am retiring it.

This is kind of unexpected since over the past few years since I'd used the drive, I'd say that nothing has happened to it that I am aware of.

What I did was juggle some data  around in my 8600 and take its original 4 GB drive for the IIci, it worked right away.

Thanks again for the help!