N.K.
Dear E.,
I believe Playschool has just come out with a portable DVD for little kids. It is really simple to use and extremely durable.
Whatever DVD player you get will need tp be somthing that can withstand being dropped since a little one is using it. We borrowed one from a friend and I am not sure what brand it was but it was thick hard plastic so the DVD's don't get damaged.
I would look at Target. I am pretty sure they have a selecttion of them.
N.