My DVD burner isn't reconziging as a DVD anymore. I put in a DVD disc and it didn't reconzige it. I really need it because my HD is nearly full and I was goin gback up some files today so I could free up some space. But now I can't. Its a genertic DVD burner I believe its dual layer or 16x. I've burned on it countless times before. I got it maybe 3 years ago.... Not sure what I should look for is there setting or somthing I need to look into?