If the CDs work on another system, they are not at fault.
If the drive works fine from your other O/S, then it is not at fault.
Are the BIOS boot options for XP changed to reflect the optical drive as the first boot device?
Are there any error messages (exact wording, please)?
Step-by-step...tell us what happens when you try to boot the system with an XP CD in the drive.
Edited by hamluis, 23 December 2008 - 09:47 AM.