I have a Sylvania SDVD9805 double dvd players for the car. I bought in February. They should still be under warranty. My problem is that one of them will not play the movie. I put a dvd in and it says it's loading, then the message comes up that there is no disc in it. I've tried different disc to see if it was the dvd. I looked in the manual but I could not find that diagnostic to trouble shoot.