Abstract: A nonvolatile memory is configured inclusive of a memory unit including a data area capable of writing data therein, and a management area capable of writing therein management information about the data written into the data area, and a memory control unit for controlling the operation of the memory unit. Under such a configuration, there is provided control means for instructing rewriting of next data with respect to a write error produced in the data area without instructing rewriting of the same data, and instructing rewriting of the same data with respect to a write error produced in the management area. Owing to its provision, an effective record rate can be avoided from falling below a rate for write data.