Sometimes when I put in a DVD in this drive it will not reconize the DVD as a DVD..What I mean I can explore it and see the files but It will not play the DVD. I have to reboot with the DVD in the drive and then it plays.Also If i put in a DVD-R burned movie it will spin the dvd for ever. I put the DVD - R movie in my DVD burner and it works..Also works fine on my stand alone DVD player..Suggestion?

P.S Firmware 0015