There are a few possibilities:
1. If the CD/DVD-ROM drive works for other audio and data CD/DVD, the CD/DVD that was inserted previously may be damaged and therefore unreadable.
2. The CD/DVD-ROM drive lens may have accumulated some dust and requires cleaning. Please obtain a CD/DVD-ROM drive cleaner from CD/DVD retailers and follow the instructions to clean the CD/DVD-ROM drive.
3. The driver for the CD/DVD-ROM drive may need to be reinstalled. Follow the steps below to remove and reinstall the CD/DVD-ROM driver.
a. Click Start, point to Settings and click Control Panel.
b. Double-click the System icon.
c. Click the Device Manager tab.
d. Click to select the installed CD/DVD-ROM drive and click Remove.
e. At the System Properties box, click OK and restart the computer.
Note: The CD/DVD-ROM driver will automatically be reinstalled when the computer starts up.
If the problem still persists, the CD/DVD-ROM drive may be faulty. Please send the machine in for our inspection.