I know in iTunes and a few other apps you can get playlists for just "highly rated" songs, but that's not quite what I want. I want to hear the lower-rated stuff, too. If I didn't like the song at some level it wouldn't be in my library in the first place, and so even a one-star song is worth the occasional listen.

However, I do want to hear five-star songs a lot more often than one-star songs, even though I think I have a lot more one-star songs in my music library. So does anyone know of media player software of plugin (preferrable free) that has a shuffle mode that is biased towards songs that are rated higher, without completely excluding those that are rated lower?

Right now I prefer windows media player, so a plugin for that would be ideal, but I'm not married to media player, either. Any music software that will do this would be worth some attention.