What do you think if I copy unusual_devs.h file from my SuSE 8.1 system to the KNOPPIX system? Would that work?
I suppose there's only one way to find out. It would be interesting to see the difference. Without any reference to go by I really just guessed at that one I posted.I don't know the first thing about SuSE. If it doesn't work post these outputs:
cat /proc/scsi/scsi
cdrecord -scanbus
dmesg | grep scsi

and your fstab please. I wish I had a pendrive to experiment with but I have no need for one.