Huzzah! I've discovered why XviD files didn't work in the PlayStation DivX Playback test. Apparently, streaming over Windows Media Player 11 does not work for any XviD files and most DivX files, but it does work fine if you load the files onto an external USB drive or burn it to a DVD. But there's a workaround, kind of.
Kinja is in read-only mode. We are working to restore service.