Cd Or Dvd Problems - Lenovo ThinkCentre neo 30a 24 Gen 3 User Manual

CD or DVD problems

Problem
A CD or DVD does not work.
A bootable recovery medium, such as the
Product Recovery CD, cannot be used to
start your computer.
A black screen is displayed instead of the
DVD video.
A DVD movie does not play.
No audio or only an intermittent audio comes
out while a DVD movie is playing.
The playback is slow or choppy.
A message indicating invalid disc or no disc
found is displayed.
Solution
• Ensure that the optical drive supports the CD or DVD.
• Ensure that the disc is inserted correctly, with its label up.
• Ensure that the disc you are using is clean. To remove dust or
fingerprints, wipe the disc clean with a soft cloth from the center to
the outside. Wiping a disc in a circular motion might cause loss of
data.
• Ensure that the power cable and signal cable are securely
connected to the drive.
• Ensure that the disc you are using is not scratched or damaged.
Try inserting another disc that you know works.
• If you have multiple CD or DVD drives installed (or a combination of
CD and DVD drives), try inserting the disc into the other drive. In
some cases, only one of the drives is connected to the audio
subsystem.
Ensure that the CD or DVD drive is set as the top priority of the boot
priority order in UEFI BIOS.
Note: On some computer models, the startup sequence is
permanently set and cannot be changed.
• Restart the DVD player program.
• Try a lower screen resolution or color depth.
• Close any open files, and then restart the computer.
• Ensure that the disc surface is clean and not scratched.
• Check the disc or packaging for regional coding. You might need
to purchase a disc with coding for the region where you are using
the computer.
• Check the volume control settings on the computer and on your
speakers.
• Ensure that the disc surface is clean and not scratched.
• Check all cable connections to and from the speakers.
• Use the DVD menu for the video to select a different audio track.
• Disable any background programs that are using CPU or memory
resources.
• Ensure that video resolution is less than 1152 x 864 pixels.
• Ensure that the disc is in the drive with the shiny side of the disc
facing down.
• Ensure that video resolution is less than 1152 x 864 pixels.
• Ensure that the DVD or CD is inserted into an appropriate optical
drive. For example, do not insert a DVD into a CD-only drive.
.
Chapter 6 Troubleshooting, diagnostics, and recovery
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