Ive got some DVDs, Fight Club and Road Trip that when they reach a certain point in the movie, they skip back to the start of that scene. Is this because of a dirty DVD or something with my player. Those are the only 2 DVDs this has happened with. Also, my DVD-ROM will not recognize the Road Trip DVD as a valid DVD. Thanks for any help.

Is this a stand alone player or a computer peripheral?

Ive got a sony ns400d in which they skip back to the start of the scene. thanks.