How can I create robust playlists w/MSC and OS or WMP for external card moved from player to player

Need reliable protocol to create playlists that play and survive robustly on external cards switched back and forth between two Sansa clip+s without involving internal drive. How can this be done? If it can’t I’m through with this, what’s the point of the external drive if you can’t make playlists? What is another device by another manufacturer that is lightweight and will do this? Thanks.