|Shut down and turn off the PC. Disconnect the power. Remove the case. Ground yourself before placing your hands within.
Note: this step applies to internally-installed CD-R and CD-RW drives. If you have an external, check the external cables.
|Check to make sure the cable running between the CD-R/RW drive and the motherboard, or from another drive, is not reversed. Fix it if it is.|
|If possible, replace the ribbon cable running between the drive and the motherboard or another drive. This is mandatory if the cable appears damaged in any way.|
|Replace the cover on the PC, reconnect the power, and turn it on. Watch the state of the drive light. It is possible that a reversed cable may damage the drive, and require you to replace the CD-R/CD-RW drive.|