Axion AXN6070A 7-Inch Portable DVD Player
What can I say?  This unit ROCKS!
Compared to other PDVDs in the market.  This one is the best of the breed.  The unit has 2+ hours of running time and i can finish a whole DVD movie.  It has two headphone jacks so my girlfriend and I can listen and watch movie together on a flight.  It has video out so you can hook to a bigger TV.  It comes with car cord and re-charging adaptor.  The screen is sharp and clear.  This PDVD rocks.