I keep having a repeating problem with my DVD burners. They all keep having the same problem diff brands tried on diff comps. It reads all disks with Media on them just fine. They read blank CDs just fine but when ever I put in a blank DVD they wont read them. I put in a blank DVD and the Burner starts up. You hear the whirring noise as it picks up speed and then a series of clicks. Tick tick tick tick tick. Then the Burner shuts down and starts over repeating the picking up speed and thent the clicks. I have four DVD Burners all of them are doing the same thing. DVDs that are already burnt work fine and blank CDs work fine. Im tired of buying new Burners does anyone know of a way to fix my problem? I would appreciate any help you could toss my way.