Im not sure if this will help, but does the sampler read the hard drives in the computer as well? If not, you are not the only one who is having this problem. My friend and I can never get our computers(2000 pro) to work right with our e6400 and e5000.
So what I did was buy a thrift store performa and steal the CD drive out of it, which I then put in a SCSI external hardrive enclosure. It booted and recognized everything on the cd, but since it was only a dual-speed, It was a little slow. A more modern scsi CD drive should load faster.
On another note, If you found a scsi macintosh, you could use the CD drive in it without removing it from the computer. The E-XXXX can access it, I have been told.