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A newly published patent application filed by Sony outlines a content protection system that would use small RFID chips embedded on game discs to prevent used games from being played on its systems, all without requiring an online connection. Filed in September and still awaiting approval from the US Patent Office, the patent application for an “electronic content processing system, electronic content processing method, package of electronic content, and use permission apparatus” describes a system “that reliably restricts the use of electronic content dealt in the second-hand markets.”