|Viruses infect Windows, not optical drives. Booting from a CD drive occurs before Windows is even loaded so if you can't boot off the disc, the problem is with the drive (or disc)...the virus has nothing to do with it. Do you have the BIOS configured to boot from the CD?|
Another possibility is to boot off a WinME boot floppy, IF the PC has a floppy drive. The BIOS would have to be configured to boot from the floppy.