The CD, DVD or Blu-ray Disc optical drive will not read a disc or is not working properly.

IMPORTANT:

• Determine if your computer has a Blu-ray Disc® optical drive .
• Before beginning this procedure, download and install any updated drivers that may be available.
• It is advised to use the VAIO Care™ hardware diagnostics to help resolve your issue. 

1. Restart the computer.

   NOTE: Wait a few seconds for the disc to be detected before double-clicking the drive to access it.

2. Ensure the disc is clean and free of smudges, fingerprints and scratches, and that it is inserted correctly.

   NOTE: The label should be facing up for CDs and single sided DVD and Blu-ray Disc (BD) discs.

3. Try a different disc in the drive.

   IMPORTANT: If another disc works in the drive, the disc may be damaged in some way or is not readable.

4. Turn off the computer.
5. Unplug the computer from the AC power outlet for 30 seconds, then plug it back into a known working AC outlet.
6. If the drive is removable, ensure the drive is properly connected and has power.
7. Turn on the computer.
8. If the computer is connected to a network, ensure the drive letter normally assigned to the optical drive is not assigned to a network drive or other resource.
9. Ensure no hardware resource conflicts  are present.
10. Ensure a third-party application is not blocking access to the drive.

    NOTE: Installation of the SonicStage® software using the compatibility mode has been known to cause this issue.

11. Ensure that there are no items in Startup or System Services causing a conflict.
12. Perform a system restore to a point when the CD, DVD or BD drive was functioning properly.
13. Check for a possible virus  on the computer.
14. Remove upper and lower filters in the registry .
15. Perform a system recovery.

The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required.