...battery? Does anyone know where I can find a dual screen portable DVD player with battery? Our current one stopped working and I cannot find one with a battery for the main screen anywhere. We like to bring the main screen on airplanes with us which is why we need the battery. Thanks!Here is a link to an example of a dual screen portable DVD player:http://www.circuitcity.com/ssm/Element-7...ail.doThis one does not have a battery on the main unit. It needs to be plugged in at all times (wall outlet or in the car). 95% of the time that would be okay, but on occasion we would like to be able to just take the main unit on an airplane and use it.