A storage medium management device may include a non-volatile storage, an error information register, and a congenital defective block identification register. The storage stores a defective block identification indicating a location of a defective block in a plurality of storage media. The error information register stores error information indicating that an error has occurred in access to the plurality of storage media. If at least one of the plurality of storage media has been replaced, the congenital defective block identification register identifies based on the error information a replaced storage medium of the plurality of storage media, reads a congenital defective block identification indicating a location of a congenital defective block from a prescribed block of the storage medium replaced, and updates the defective block identification of the replaced storage medium, with the congenital defective block identification read out from the replacing storage medium.