Anyone have any idea where i can get research on portable dvd players? Which rank the best? Long battery life, doesn't get so hot that the discs stop working? The price range is so wide spread ?! Seems like I have been all over the net and all I can find are site that want to sell me a player! I want to make sure I get the most bang for my buck .... and it just seems like I could get a laptop for some of those highend prices?