Information processing device, method, recording medium, and program

摘要

The present invention relates to an information processing apparatus and method, a recording medium, and a program in which usage status information necessary to use content can be managed on a service-by-service basis. The usage status information is stored in a management area for a service node in association with a content ID (CID) and a usage-right ID for management. Accordingly, since the usage status information is managed on a service-by-service basis, even if a piece of usage status information is broken or tampered with, the effects thereof can be blocked within one management area. In other words, the content whose usage status information is stored in a management area in which usage status information which is tampered with is stored cannot be used; however, the content whose usage status information is stored in other management areas can be used without difficulty. The present invention is applicable to a personal computer.