RCA RC5400P Portable DVD Player
Very Good Portable Player
For the price, you are getting a very reliable portable DVD player. The best things are the features offered and the picture screen quality.  I have used it on airplanes. The headphone feature is required over the roar of the plane engins. This would be true with any portable DVd player. As for viewing time, I average 3-3 hours, this usually gets me through one movie and part of another. On the plus side, the battery stays very well secure to the unit. Other brands fall off easily. As for the unit getting hot.  This is comes with any portable unit out there, and I did not find the heat produced excessive.  I am very happy with my unit and have purchased one for my parents also. Unit does not come with car adaptor.