Koss DVP2161 Compact DVD with MP3/CD Player
Why buy anything bigger?
I picked this up to use for travel, not in transit, but for plugging into a hotel TV on a family vacation. It's almost perfect. The one thing missing is a coaxial cable line out. It has component outputs, which is great for most recent TV's. However, in a hotel, you never know what you are going to get.      Meanwhile, I use this all the time at home. We have two TV's with no space for a fulltime DVD hookup and this does a perfect job. I haven't had overheating issues and it plays disks that I have trouble with in other players.      Would definitely recommend.