I'm still testing this wonderful app

It seems that the ratings (starred files, favorites) are linked to the directory in which are placed the songs.
Example :
song 1.mp3 in directory /MP3/A : I click on the star to make it favorite
I move it into /MP3/B : the star isn't yellow anymore ; the song disappears from the favorites
I move it back into /MP3/A : the song is favorite again, yellow star
This is really annoying. Does it mean that If I decide one day to order my music collection differently (move some mp3s in other folders, rename them ... ) all my ratings and favorite songs will be lost ?
Is there a way to backup these starred songs nformations ?
Thanks