Client device, information processing method, and information processing system

摘要

There is provided a client device including a storage section which stores content data, a control section which acquires content identification information for identifying the content data stored in the storage section, and a transmission section which transmits, to a server device, a registration request including user identification information for identifying a user who uses the client device and the content identification information acquired by the control section, and which, when the server device holds the content data identified by the content identification information, causes the server device to hold information obtained by associating the user identification information with the content identification information as user-specific registration information.