Polaroid PDV-0700 7" Portable DVD Player
SEND IT BACK
After reading other reviews I checked my portable DVD player over carefully when I recieved it and it looked warped in two areas and after trying to open the CD cover a couple of times it wouldn't stay shut.  It felt very cheaply made!  I did not open it any further (I only opened the main unit, not the battery) and am returning it to amazon.com.  Amazon did a great job of letting me return it and I suggest you do not buy it!