You can also look for a used Pioneer DVD-V7400. Due to being designed for Industrial and Commercial environments they are built like tanks. They only desirable audio output is coaxial, but it does a good job at that, and they sell for less than dirt used (<$100).
Great find! Do you happen to know if a display is required for that unit? Maybe just for initial setup even? I might snag one or two of these just to have around. I'm mostly playing FLAC files these days but once in a while it is nice to just pop a CD in and go.