to Phil, I have computer that is a 'relative' of your HP (first cousin twice removed perhaps - ha.) A Compaq laptop from 2006. The cd/dvd rom drive works intermittently. Using Windows Explorer after booting up, I see if the drive folder is shown. If it is not, I reboot. Sometimes I push the drive button to make the drive door open and close. When the drive shows on the list in 'My Computer', I know I can use it. I've been able to write data to a blank and even use the Lightscribe feature to label the dvd... when the drive is being recognized. When it is not being recognized, and a cd/dvd is inserted it will make the beginning sounds of starting up. Then it quiets and nothing else happens. Strange. And the repair shop said new replacement drives are "mumble mumble... not available". Have not pursued finding replacement for this somewhat elderly laptop. Thus, I'm thinking you have a hardware problem, your cd/dvd drive has gone bad. Sue A