STORAGE MEDIUM AND CONTENTS PROTECTING METHOD USING THE MEDIUM

摘要

PURPOSE: To protect contents by making illegal electronic equipment ineffective when a storage medium is mounted on the electronic equipment represented by revocation information and used by previously registering the revocation information in a specific storage area of the storage medium. CONSTITUTION: In a read-only open ROM area 132 secured on a PM (storage medium) 13, a revocation list RL by which a PD (recording and reproducing device) to be made ineffective for contents protection can be decided is previously registered and when the PM 13 is mounted on an LCM (contents use management system) or the PD and used, a controller 130 provided on the PM 13 receives information. representing the LCM or PD from the equipment, refers to the revocation list RL with the information, and determines whether or not the equipment is made ineffective according to the reference result.