Polaroid PDM-0725 7-Inch Swivel Portable DVD Player
LOVE IT!!
[...]  This is a great DVD player, we have a 4x4 and the DVD player hasn't skipped over a bump yet.  Plus the [optional] games are nice on road trips when the kids are sleeping dad can play while mom drives or vise versa.  I also like the fact that it swivels and mounts flat unlike a lot of pricer DVD players that have to be mounted open like a laptop.  Good value!