Go to my computer, right click on your DVD drive, and then select properties in the pop-up menu. When the next screen pops up, you will have a tab labeled "autoplay". You can disable autoplay for any type of CD/DVD by using the drop-down menu. Good luck!
the best and easy way to disable autorun on xp i use TweakUI all the time on xp computers
How to Disable CD and DVD Autorun in Windows XP
Windows XP contains a feature which automatically runs the software on a CD or DVD loaded into an optical drive on your computer. This is designed as a convenience, but can have the unintended consequence of loading or executing programs on your PC without your permission. Microsoft developers have created what they call a PowerToy -- an unsupported but free piece of software you can install, which allows you to easily disable autorun on your optical drives.
This PowerToy gives you access to system settings that are not exposed in the Windows XP default user interface, including mouse settings, Explorer settings, taskbar settings, and more.
Version 2.10 requires Windows XP Service Pack 1 or Windows Server 2003.
Run TweakUI. Go to the Start menu, select programs, and look for a folder called PowerToys.
Expand the My Computer menu by clicking on the + to left of My Computer
Expand the Autoplay Menu
Select the Drives menu, and deselect the optical drives on your computer. To do this, click on the checkbox so that the checkmark goes away.