I want to buy a portable dvd player as I'm going to have to do a lot of driving with my ds (2) on my own over the next few weeks but am totally swamped by information and am now really confused. I just want one with 1 screen that hangs from back of headrest. Someone had recommended a phillips one but has no 'mounting case' for headrest - Anyone got any advice pleeeeeese am doing a 5 hour trip next thurs and really want to get one before then....