The iTunes Store no longer uses DRM copy protection on songs and albums that you purchase. However, you may still have DRM-protected songs in your digital music library if you purchased them in 2009 or earlier. If you're experiencing issues such as an inability to burn a playlist or incompatibilities with certain songs on a mobile device or another computer, it may be a DRM-related issue.
How do I remove DRM from my music?
If you purchased songs from the iTunes Store prior to 2009, chances are they were copy-protected by Apple's FairPlay DRM system. So what exactly can you do—or rather, what can't you do—with iTunes Store-protected audio files?
If you have multiple DRM-protected songs in your music library, you can remove the DRM protection in a couple of ways: