PURPOSE: To easily protect the information recorded in a storage medium by recording the information for managing the access right of the storage medium by other means than the storage medium.

CONSTITUTION: On a medium case 110 for containing a first storage medium 100, a means 150 for transferring a signal optically, magnetically or electrically is provided so that univocality of the storage medium 100 can be decided without exchanging data to a first storage medium 100. In such a way, by recording user's data such as a mug shot, a fingerprint, a signature, an ID code, etc., of a user, misuse of the user himself is prevented, and also, by inputting the recording information as a signal, for instance, by an optical sensor, and also, inputting the corresponding information of the user himself from a keyboard, etc., and collating both of them, the access right of recording data of the storage medium 100 is managed, by which the security management can be executed.