 Critical reception of the album has been generally favorable , with its unorthodox release attracting positive comments from many critics . Much coverage of Ghosts I – IV has compared it to the digital @-@ download releases of Radiohead 's In Rainbows as well as Saul Williams ' The Inevitable Rise and Liberation of NiggyTardust ! , the latter produced by Reznor himself . The album was nominated for two 2008 Grammy Awards , in the categories " Best Rock Instrumental Performance " and " Best Box Set or Limited Edition Package " . These nominations represented the first time music released under a Creative Commons license had been nominated for a Grammy Award . 
