Thanks a lot, i got it, i'm using a SATA Hard Disk but my CDROM and CDwriter are IDE (ATAPI). Now i have an idea to probe in to it. thanks a lot.
SMART only exists for DASD devices, not CDRom or CDRW devices. -- James McKenzie With assistance, Now running 2.6.11rc3, Software Suspend 2 and ibm-acpi .1 Need a home for my .rpm