Which of these portables?
 

I've narrowed it down to these three. Basically, I will be using this practically every day, twice a day, on the DC metro system. It will be getting about 30 mins of use each time, jostled in my bag on the walk to the office, and generally treated rudely. In other words, it will be run into the ground. I didn't want to buy something that will cost too much to replace.

I wanted WS and DD/DTS decoding with reasonable battery life. I'll be using headphones, so speakers don't really matter. SIZE is a big plus, since I want to stick it in my bag to and fro.

So here's my choices, comments appreciated:

Mintek 7" Widescreen Portable DVD Player - MDP-1770 - $270

http://www.target.com/gp/detail.html...sin=B00009OLLO

Initial Portable DVD Player With 7-inch Screen IDM-1731 - $220

http://www.walmart.com/catalog/produ...&path=0%3A3944

Initial Portable DVD Player With 8-inch Screen IDM-1810 - $296

http://www.walmart.com/catalog/produ...A62055%3A62056

Thanks!