Hmmm....sounds like a driver issue. More than likely an issue with Roxio's "on-cd" application.

First item would to boot to safe mode. Once booted to safe mode and the pc runs (without restarting), you will want to disable XP's automatic restart option. To do this, right click the My computer Icon, go to the Advanced Tab, and click on the settings button under the startup and recovery section. Under the System failure section, unmark the Automatically restart option. Then apply the setting changes and reboot the pc. Once the pc reboots and the error occurs again, write down the error and post the error here.