Plextor 712sa dvd help

it seems like i can no longer read dvds. i tried a multitude of discs burnt by the drive, commercial dvds, dvd+r and dvd-r, and all just result in a blinking light. the drive still burns dvds fine, and can read and write cds fine. is there anything left for me to try or should i contact plextor support?

Since the SA does not have diagnostics, use PTP or Nero DVD Speed to test the drive.

For Nero, download the latest DVD Speed and use ‘Create disc’. The drive will write and graph the burn for CD/DVD, then use the Transfer Rate Test. If there is a reading problem, the graph will show it. If ok for CD and DVD, look to your system/applications.