try a can of compressed air to blow it out. a spec of anything on the lens can cause major prob's. As I told someone else with dvd prob's it is worth the little extra to spend on a NAME brand dvd. Generics are attractive with the price and all but name brand is the way to go. less bugs and more stable.
hope you can bring this one back. sorry if not more help.
hope you can bring this one back. sorry if not more help.