I use Musicmatch Jukebox (one of those that plays mp3s on computers, so it's not portable) to play my mp3s, though recently I accidentally downloaded the newest Windows Media Player because I couldn't see the corresponding images for http://killthemongoose.satamsonic.com/onepiece/clips/rice.avi . My "I have an outdated version of Windows Media Player, so I'll download the newest version" theory didn't work, and the best guess would be that the file is badly clipped.