I have a PowerBook 540c but it has a PowerPC upgrade. Anyway the problem is long and complicated, and I have already posted it on 68kmla, so I will just link to that thread:
http://www.68kmla.net/viewtopic.php?t=8124
Please, somebody help me this is driving me insane.
Nasty problem with CDROM and PowerBook
February 2, 2007 - 12:44am
#1
Nasty problem with CDROM and PowerBook
Do you have your SCSI IDs in order, and is the termination correct? The PB doesn't supply term power, IIRC, so the drive will have to.
Yes the termination is correct. The drive does supply termination power and I also have an active terminator on the unused SCSI port on the drive. It's ID is 4. Keep in mind this is an external drive.
like a problem where the CD drive isn't reading the disk properly. Dirty drive lens, scratched disk, that sort of thing. Have you tried other disks and/or drives?
just my $.02,
dan k