un-dma napster to go wmas

hey, i am not a pirate, nor do i ever practice piracy, but my hd player wont play drm material, i want to remove the protection so i can put it on my mp3 player, which supports wma and mp3, could you help me is there a method which will retain the id tags(artist and song names)
p.s. the winamp method does not work anymore,
(i am doing this with legal responsibiltiy, i will of course delete the songs if i was to stop paying for napster to-go)

thanks alot!