Do this -> http://www.pchell.com/hardware/cd_drive_error_code_39.shtml
Also works for other codes.
my hp dv9700 laptop has suddenly stopped recognising my dvd wrighter drive. i was told it was the drivers, but others say that it's the wrighter, but i removed the wrighter and then placed it back in the slot and then it started powering on, and i was able to open the tray useing the eject button, but it would still remain unrecogniseable. so then i restarted the pc but when the pc came back on the wrighter failed to do the same...
i need to know what the possible problems could be an how to rectify them