Axion offers a very compact portable DVD player with the Axon DVDMan AXN-6042.

The AXN-6042 features a 4.2 inch TFT screen with a resolution of 320x234 pixels. This portable DVD player resembles a portable CD player. This portable player can also play music CDs.
Other features include: stereo speakers, dual headphone jack, car and home power adaptors and Axion extension port.
Via the Axi-port a Sega gaming joystick and a TV Tuner can be connected. The Axion DVDMan sells for $139.99 at the Axion online shop. More details on the Axion product page.

Find hot Portable Video Players.