Trent Reznor isn’t one to shy away from taking on the man. He self-releases his albums digitally through his website and often allows fans to sample his music for free in re-mixes. Now, he’s taking on Apple (NSDQ: AAPL). In the Nine Inch Nails blog Reznor tells how iTunes wouldn’t accept his latest iPhone app, nin: access, because it allows users to listen to the album The Downward Spiral, which Apple deemed offensive. Reznor says that he was puzzled because the album The Downward Spiral isn’t even available on his app.

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Reznor compares iTunes’ standards to those of his old nemesis Wal-Mart (NYSE: WMT)—back in ‘90s, Rezor refused to censor his music sold at Wal-Mart to conform with the company’s decency standards: “Wal-Mart went on a rampage years ago insisting all music they carry be censored of all profanity and ‘clean’ versions be made for them to carry…I can understand if you want the moral posturing of not having any ‘indecent’ material for sale. But you could literally turn around 180 degrees from where the NIN record would be and purchase the film Scarface completely uncensored, or buy a copy of Grand Theft Auto where you can be rewarded for beating up prostitutes. How does that make sense?”

We have a call in to Apple, and will add the company’s take on this if and when we hear back.