Many times after writing a CD-R or CD-RW, Windows will mindlessly eject the CD whether you actually want to remove the disc or not. This is a stupid feature, in my opinion. But, it can be turned off. Most 3rd party CD burning clients have an option in their preferences to turn this off. Or in Windows XP, go to My Computer, right-click on your CD writer drive, choose Properties, Recording and uncheck “Automatically Eject the CD After Writing”. If the option is grayed out, it is because you do not have Windows CC writing enabled on the drive and are likely using a 3rd party program such as Nero.