I'm having an issue with a DVD burner/reader. I've had this thing for about a year and it's functioned fine until recently. I have some generic I/O Magic dvd burner and recently I have had problems seeing certain DVD's. So yesterday I tried burning some data to a DVD and I keep getting illegal disc. I go to check my DVD burner and it shows no dvd is inserted. I try inserting some dvd's on movie I own and it shows nothing. I insert a game on CD and it reads fine. I'm wondering if this is possible hardware failure or a dirty lense? Any recommendations?