Patent ID: 7826620

Claim:
An information processor, comprising: a data processing section including a processor that executes computer readable instructions for performing a process of storing subsequently generated data, which is subsequently generated or acquired using information read from an information recording medium, onto a storage device, said subsequently generated data being generated subsequent to data being pre-stored on the information recording medium, wherein the data processing section is configured to execute a processing of storing onto the storage device encrypted subsequently generated data as encrypted data that is encrypted with a unit key as an encryption key corresponding to a content management unit to which the subsequently generated data belongs, and execute a processing of acquiring an encrypted bind unit key and storing the encrypted bind unit key onto the storage device, the encrypted bind unit key being encrypted data of a bind unit key including as its constituent data the unit key and one of key information acquired from the information processor and identification information acquired from the information recording medium, said bind unit key being one of a plurality of different binding types uniquely identified by respective codes stored in the storage device for device-binding, disc serial-binding, package-binding, and unbound.