ReDigi bills itself as “The World’s First Online Marketplace For Used Digital Music,” but the RIAA is not impressed. Categorically rejecting the “first sale” doctrine as a safe harbor, the Recording Industry Association of America has sent the ReDigi digital music resale site a letter (PDF, hat tip: Cnet) that effectively demands that the company abandon its business and open its sales records to RIAA’s lawyers. Cease and desist your “infringing activities,” the missive warns. But that’s the least of it.

via RIAA wants ReDigi out of the business of selling “used” iTunes tracks.