Real player: how to back up playlists

I needed to backup all the playlist that i have ….
the playlists got corrupted and i could not retrieve them so what files shoudl i keep to backup ma playlists in real player
Answer #1
does nebody wanna help me ?
Answer #2
Some info here..
http://real.lithium.com/real/board/message?board.id=realplayer&message.id=4317
Answer #3
hey thnx dude ….. my problem solved abt how to back up playlistss…