We bought the Durabrand (
Walmart) brand before our last trip to WDW in July '04. It had the player and 2 detachable screens, for about $279 or so. Worked fine for the trip down and back, and worked fine for about 3 weeks afterward, then it just quit playing DVDs. It would power on, and the DVD would spin, but it would not play it at all. I double-checked all the connections and settings, but everything was the way it had always been, so it appeared to be a problem with the DVD player itself. No problem, I took it back to Walmart for an exchange (be sure you're within a 45 day window and have a receipt, by the way, which I did) for the very same thing, figuring I probably just had a lemon. This new one worked fine for about 3 weeks, then all of a sudden it had the same problem. Would power on and spin the DVD, but not play it. Again, all connections were fine, so I'm not sure what the problem was. Anyhow, I took it back for a cash refund that time. Went to Circuit City and got a Sony portable DVD player in a hard case that can be suspended between the seats. Works much better, and feels much sturdier, since it's encased in a hard case rather than just a flimsy Walkman-style player. Only drawback is it has only one screen, but you can buy another screen if you really need one. Got it at CC for about $169, and very pleased.
I may have just bought into a bad lot of the Durabrand players at Walmart, b/c others have said they were fine with no problems, but I'm very pleased with the Sony.