Plextor PX-716A Can't read it's own burnt discs?!!

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Hello everyone I am looking for some help. I have a Plextor 716-A Firmware 1.10. It burns everything with no problems. The Dvd movies I burn with it play perfectly in my standalone home dvd player. Or should I say XBOX. But no matter what If I try to play that burnt dvd in my plextor drive It wont read it. It just sits there and spins and spins like no tomorrow. Whats weird is that I burnt this disc with this drive how can it not read it. This happens with every burnt dvd movie I burn. I had firmware 1.08 so I decided to upgrade to 1.10 that didn't help. UDMA is enabled everything is fine but for some reason it wont read the discs but they play fine in my own dvd player. I get no error when it tries to read it, u just see the status light up orange off and on. Please help!!! Or should I say this has had it's best years behind it. Have had the drive for over 2 years. Love the thing.