Audiovox D1812PK 8-Inch Portable LCD DVD Player with Car Kit
excellent choice
We purchased this portable DVD player for a trip which included a connecting flight and a five hour drive with our two year old son. The car seat hook-up was pretty simple, the quality of the picture was great. My son did not want to wear the earphones and the sound was heard perfectly well with all the road noise. We even used it on the plane trip and had to lower the volume quite a bit so as not to disturb others. Did I mention how great having a remote for it was.  It played through an entire movie and we had no problems with the battery. And guess what? It comes in it's own carrying case which fits all the straps, battery and attachments.  It was perfect and absolutely well worth the money. We've used it on about 10 occassions already and no problems.