With a little bit of work, you can create DRM-free versions of your iTunes music. Digital rights management (DRM) prevents a music file from being played by an unauthorized user or player. The recording industry thinks DRM is necessary to stop piracy, but as Steve Jobs put it in his February 6, 2007, public letter titled Thoughts on Music, “DRMs haven’t worked, and may never work, to halt music piracy.” DRM’s restrictions effectively do nothing but annoy the people who bought the music. Since Jobs’s letter, the iTunes Store has gone on to offer DRM-free songs, but the iTunes Store’s DRM-free library, called iTunes Plus, is limited (although always growing). If you already have a DRM’d iTunes song, you can pay 30 cents per song to convert to a DRM-free version—if one is available. Or you can create your own.