A few years ago, Reznor tried a kind of shareware-style "first episode is free, buy the full version" model with the Ghosts 4-disc set: Ghosts I was free, but y

A few years ago, Reznor tried a kind of shareware-style "first episode is free, buy the full version" model with the Ghosts 4-disc set: Ghosts I was free, but you had to pay if you wanted Ghosts I-IV. You could buy either physical version of various levels of fanciness, or DRM-free downloads (MP3 or FLAC).