No, it's not DRM protected! There is an update to the article: Update 26 December, 12:12 UTC: You can simply rename the extension from .m4p to .m4a and the fi

No, it's not DRM protected! There is an update to the article: Update 26 December, 12:12 UTC: You can simply rename the extension from .m4p to .m4a and the file will play fine. There appears to be no DRM at all. I have no idea why Apple would do this since many apps and devices don’t recognize the .m4p extension, which only leads to unnecessary confusion (and posts like this), but whatever.