LICENSE MANAGEMENT DEVICE, LICENSE MANAGEMENT METHOD, AND COMPUTER PROGRAM

摘要

An information recording medium, an information processing device, and a method that allow a copyright- protected content to be used on both a CD player and an information processing device such as a PC. A licensing condition for providing a client with license is set dynamically depending on the content usage state of the client. For example, the license price is low or the license is free for a client who uses contents frequently. A medium ID stored on a CD or the like and a product ID used as the identifier of a title, an album, or the like are received from the client and, based on this identification data, the content usage state data is confirmed. This makes it possible to grant a license under reliable content usage management.