Troubleshooting and Maintenance
Getting Assistance for Your Notebook
100 Reference Guide
CD and DVD problems
If you can’t boot from a CD in the DVD/CD-RW drive
• Make sure the CD is bootable, such as the Recovery CDs.
• Make sure DVD/CD-RW drive is selected as the boot device—see “To change the
boot device” on page 30.
• Restart the notebook.
• Test the DVD/CD-RW drive with the e–Diagtools diagnostics—see “Testing the
Hardware” on page 120.
If a CD or DVD plays erratically
• Dirt or smudges can cause a disk to skip. Clean the disk with a soft cloth. If the disk is
badly scratched, it will probably have to be replaced.
• Some DVDs include software called “PC Friendly.” You generally should not install
this software, as it can cause errors or erratic play. If needed, uninstall it and restart
your notebook.
If a DVD movie stops playing in the middle
• You may have accidentally paused the DVD movie. Press the Play button to resume.
• The DVD may be double-sided. Open the DVD tray, and read the text near the center
hole of the disk. If it says Side A, flip the disk over, close the tray, and press the Play
button to continue playing the movie.
If you get a Region Code error when playing a DVD movie
• DVDs can have regional codes embedded in the disk data. These codes prevent DVD
movies from being played outside the region of the world in which they are sold. If
you get a Region Code error, you are trying to play a DVD intended for a different
region.
Important: most DVD drives let you change the region code only a limited number
of times (usually no more than four). Please note that when you reach this limit, your
last change to the region code will be hard-coded on the DVD drive, and will be
permanent. Your HP warranty does not cover the expense of correcting this
situation. Refer to the help for your DVD player software for details about setting
region codes.
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