More info needed! CD Interface? CD Software? 1200 Workbench and
ROMs, patches. Has the problem always been there or just new. How
often does the machine crash when reading the cd? Is the 1200
otherwise stable? Any other info?
Very intermittent fault? Check all your cabling!
Try to wiggle the cd ide and power cable to see if you can force a
reboot. I had some strange random crashes and it was the 4 way power
connector adaptor that fed all my SCSI devices.