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Chapter 4: Troubleshooting
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Audio CD does not produce sound.
■ Make sure that the CD label is facing up, then try again.
■ Some CDs have copy protection software. You may not be able to play these
CDs on your computer.
■ If you have two CD drives, try the other drive.
■ Check the speaker cables. Make sure that they are connected correctly and
securely.
■ Make sure that the volume controls are turned up. For more information
about volume controls, see the documentation that came with your
computer.
■ Make sure that mute controls are turned off. For more information about
volume controls, see the documentation that came with your computer.
■ Shut down and restart your computer.
■ Clean the CD.
A DVD movie will not play.
■ Make sure that the label is facing up, then try again.
■ Shut down and restart your computer.
■ Clean the DVD.
DVDs and drives contain regional codes that help control DVD title exports and
help reduce illegal disc distribution. To be able to play a DVD, the disc’s regional
code and your DVD drive’s regional code must match.
The regional code on your DVD drive is determined by your computer’s delivery
address. The regional code for the disc is on the disc, disc documentation, or
packaging. The regional code for the United States and Canada is 1, and the
regional code for Mexico is 4.
If the DVD movie does not play, the disc’s regional code and your regional code
may not match.