Cannot playback Discs

The disc is dirty or scratched. Either clean the disc, or insert a different disc.
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Discs cannot be played back unless they have been finalized. Use a finalized disc. link

This may be caused by poor recording conditions, or the disc itself may be of poor quality. Use a correctly recorded disc.

Files are created in a format that is not supported by this unit. Check the formats supported by this unit. link

“No Disc” is displayed if the disc is loaded upside-down or if no disc is loaded.

“System Error” is displayed when an error not caused by disc, format, etc., occurs.

“Can't Read Disc” is displayed when the inserted disc cannot be read because it is not compatible with this unit or is dirty or scratched.

“Wrong Format” is displayed for files created in a format that is not supported by this unit. Check the formats supported by this unit. link