US Patent 7233916 Method and system for tracking content rental

The invention concerns a method (300, 400) and system (100) for tracking content rental. The method includes the steps of—from a portable electronic device (112)—requesting (312, 416) multimedia content for a rental session, determining (314, 418) whether the request for the rental session is authorized, receiving (320, 422) at the portable electronic device the multimedia content for the rental session if the request is authorized and terminating (324, 426) the rental session based on a predetermined power condition of the portable electronic device.