I figured out that if i rate a song in winamp (put them stars) , and then MOVE the song to another path / folder, the rating simply disappears. So, where (or how) does winamp save the ratings for the songs? 

Its disappointing having to re-rate a lot of songs because i moved them (e.g. simply because i backed them up and now they are not in the original path), so, is there a way to keep the ratings of the songs when moving / copying them ? 

Or to "save" the rating in the song file itself (metadata or something) instead of winamp saving it somewhere?

Does all media players do that? I really don't plan on using another media player, but maybe they don't have that problem... what do you suggest?

What i want is simply to keep the ratings (stars) of songs and be able to move them anywhere without losing the rating.