OK, so here is the deal. I just bought a cheap portable DVD player from CompUsa. http://www.compusa.com/products/prod...34206&pfp=cat3 I am going on a trip and this is to keep the kids happy on a trans atlantic flight with a long layover. So, I am looking into additional batteries. I found one from Radio Shack that I think is good. http://www.radioshack.com/product/in...032056.2032152 Has anybody ever used it? Another kind? Thanks for any input.