Coby TF-DVD7050 7-Inch TFT Portable Tablet-Style Portable DVD Player
So far - it's perfect!
I bought this a few weeks back for my 7 mo. old. All I can say is it does great!  We have been on 4 3-hour trips and I didn't have to stop once.  (Before, it was 5 to 9 times)  She loves watching the Baby E videos.  Sound volume is not a problem. Although I wish there was a volume control on the remote.  It doesn't skip, even on our 1.5 mile gravel driveway.  I love the tablet style for hanging off the rear head rest for the rear-facing car seat.  I don't have to worry about her seeing over it or getting at it. So far, so good.  I bought the 2-yr protection plan just in case.