Mintek MDP-1815 8.5 In Port Dvd Player
Very good to excellent portable DVD player
UPDATE:  WE HAVE HAD THIS FOR OVER A YEAR, WITH MY WIFE PLAYING IT AT LEAST 10 HOURS PER WEEK AND DRAGGING IT ALONG ON A NUMBER OF TRIPS AND IT STILL WORKS GREAT.    This is a very nice portable DVD player, and about the best one I have seen.    It has a big 8.5 inch screen.  It is a significant improvement over a 7 inch screen, without a significant increase in case size or price.  It still sits nicely on your lap, or on the tray of an airplane seat.    This unit has all the controls on the case.  The controls are easy to use.  With many other portable DVD players, you have to use the remote control to access all of the functions.    The battery lasts a little over two and a half hours, which is enough to watch a full length movie.  The battery life is typical, but I have seen units that go up to 4 hours.  Note that my unit did not work with a portable battery.    Picture quality is pretty good and better than some other portable DVD players I have viewed.  It is better than most 7 inch units.  However, it is not as good as those inflight players that are the back of an airline seat.    The unit is sturdy and has worked well, with no problems.    Note that buying a portable DVD player can be a gamble. The quality control has been spotty. One person might buy a unit and have no problems, while someone else buys the same model and has all kinds of problems.  I recommend buying a portable DVD player from somewhere where it is easy to return in case you have problems.    Note 2:  I bought one of those \\"6 hour\\" external universal batteries that plug into the side of the unit.  It only lasted about an hour.  The brand I bought was Everyready.  Maybe another brand would work better.