Mintek MDP-1810 8-Inch Portable DVD Player
Disposable DVD Player - Decent quality while it lasts...
I purchased this in August 2004 for my daughter during long plane/car trips. It worked well and went through a lot of use until it recently gave out (Jan 2006). Although I don't consider that necessarily good quality, if you get a good deal and buy it from a store (such as CostCo) which has a liberal return policy you can probably end up with a decent player that will last you 1-3 years or so, even if you have to return one if it fails during the initial burn-in period.