Polaroid PDV-0700 7" Portable DVD Player
great player for 250
This is a great little player for the money, you will not find a name brand for less.  I used it on a car trip for 13hrs straight and the player didn't over heat like others I have used.  Just make sure you don't have the battery in while it is plugged in a are watching.  The piture and sound our great, no problems