SYSTEM AND METHOD FOR DATA FILING

摘要

PROBLEM TO BE SOLVED: To solve a problem that the life of a recording medium itself is reduced due to the increase of the number of rewriting times in an FAT area in the case of using an FAT system data filing system in the recording medium where the number of rewriting times is restricted and a problem that a data area becomes small in the case of plurally providing the FAT area. SOLUTION: This system has a data storing area and a using information storing area for storing using information of the reading and writing unit of the data storing area. A chain information writing part for writing chain information of the individual reading and writing unit of the data storing area is provided in a part of the data storing area. Using information for writing the use of each reading and writing unit is provided at each reading and writing unit of the data storing area, and signals under using, used and unused are stored in a using information storing area.