with USB or built in DVD player...
For what its worth .. I wouldnt bother with a built in DVD player, Had them stuff up ... With the TV we use USB sticks and 1TB external hard drive or take a little portable 9" DVD player and leads, means an extra power hook up though ..
We Just have a HD 8m power cable from the TV to the camper or truck with an Ando plug to the Aux power [ Never had any trouble just using a HD truck / farm type N70Z type battery to power it watching a few of movies ] on wet days etc ..
Looking at making a light frame to hang it outside or stand it inside instead of the screw on base ..
A light layer of Fibreglass over the original delivery cardboard box makes for a solid protective case too .[ Yet to do this though ] .