Most new computers come built-in with a CD drive, DVD drive, or both. The average CD/DVD drive only has the ability to read data, while others can read and write (record) data. While a CD drive can only read Compact Discs, a DVD drive is able to accommodate data on a DVD and CD as well. These drives typically require a special type of software to enjoy basic functionality. For example, if you want to listen to music or watch a movie, you will need a program like Windows Media Player. If you want to record a CD or DVD, you would need a disc burning application. Regardless of which of these drives you have installed your computer, both require device drivers in order to function properly. Why Device Drivers for Your CD/DVD Drive Fail A device driver is what will enable the operating system to recognize and control the drive. If you find that your CD or DVD drive suddenly stops working, solving the problem could be as simple as updating or installing a new device driver. A drive could fail for a number of reasons. For example, sometimes just installing a software application or hardware device could replace your driver files with new own versions. When this occurs, the device or application that depended on the overwritten driver may not function correctly. Another situation that could result in a failed driver is the un-installation of software and shared DLL files. Even though the uninstall wizard assumes these files are no longer required, other devices and applications may still need them. Know Exactly What Device is Installed Before replacing the device drivers for your CD or DVD drive, it is vital to learn exactly what type of device is installed on the system. On Windows XP, open the "Start" menu, click "Programs," "Accessories," and "System Information." On Windows Vista, all you have to do is type "System Information" in the Start menu's search field and double-click the utility when it displays. Inside of System Information, click the "Components" tab and then select "CD-ROM." In the pane to the right, you should see detailed information that includes the name of the hardware, the manufacturer and device driver. After discovering who the manufacturer of the drive is, you can then visit the company's website and download the appropriate device drivers. Troubleshooting Updated CD and DVD Drivers The CD or DVD drivers you download from the manufacturer may or may not come as executable files. With executable files, all you have to do is double click the icon and follow the instructions. If they are not executable, you must install them through the Device Manager utility. To launch the Device Manager, open the "Control Panel," click "System" and select "Device Manager." Find the text that reads "DVD/CD Drives" and click the (+) sign beside it. This will display a list of all the CD and DVD drives installed on your computer. Double-click the device in question and click the "Driver" tab. Next, select "Update Driver." From here, choose the option that automatically browses your computer and choose the location where you stored the device drivers. After the drivers have been completely installed, simply reboot your computer and allow the changes to take effect.