The DVD player cannot read or play the inserted disc.

Follow this procedure to troubleshoot if the DVD player cannot read or play the inserted disc.

Ensure the inserted disc is compatible with the DVD player.
IMPORTANT: Consult the instruction manual of the DVD player for a list of compatible discs.

Use a soft cloth to clean the disc.
Examine the disc for any cracks or scratches that might be interfering with playback.
Attempt to play another disc.

If another disc plays in the DVD player, then the previous disc is faulty.
Some recordable discs may not play correctly because of the quality of the recording, the physical condition of the disc, or the characteristics of the recording device or authoring software used.

Remove the disc from the DVD player.
Turn off the DVD player.
Unplug the power cord of the DVD player from the AC outlet.
Let the DVD player remain without power for 1 minute.
Plug the power cord back into the AC outlet.
Turn on the DVD player.
Insert the disc into the DVD player.
Attempt to play the disc.