Mintek MDP-1770 7-Inch Portable DVD Player
Works Wonderful
We have had our unit for almost a year and it works wonderful.  The battery life is a little short, but we got an external battery that powers it for 10-12 hours.  This has worked quite well on overseas flights which are 9+ hours.  This is our second unit.  The first one which has a square screen, is used as a security monitor for an out door camera.  It has been in use for over two years.  The 7\\" for the price was an excellent value.  If it breaks it is a much cheaper reinvestment.