The Sylvania SDVD8737 7-inch Dual Screen portable DVD player made my 10 hour trip with my three kids that much more bearable. Changing the DVDs was very easy for my twelve year old son who played the "Gatekeeper" to ensure the younger kids didn't get bored. The volume wasn't too loud and when the littlest went to sleep the older kids were able to hook up the head phones and keep watching. I was very happy with the ease of set-up and the ease of use. Overall I am very happy that I bought this before this last trip. I haven't used the USB/SD portion yet, but I did test it and it works really well. I think that next time we go on a long drive I will load up an SD card with some movies to make it easier for them.
Oh, and the New and Improved mounting system is AWESOME!! It Velcros onto the headrest, and to change out the DVD there is two straps that you can undo on the main DVD player, and it will hold against the headrest so you never have to take it down. It never slipped and we never had any problems with it. By the end of the trip my 4 year old was giving directions!