Initial IDM-1731 Portable DVD Player with 7-Inch LCD
Great over time
I purchased this player about 2 years ago, and it has been used hard and often by my 4 year old daughter.  I actually would have expected it to break by now - as anyone with a very busy small child will attest to - but it just keeps on working.  Recently, the car adapter went out, but with the workout it usually gets, that is understandable.  If you want a durable dvd player for the car, this is a good investment.