| 摘要 |
PROBLEM TO BE SOLVED: To provide a management method of file information capable of managing the file information individually and reducing a necessary processing in preparation of a check code. SOLUTION: The management method is provided with a step for adding the check code 23 prepared on the basis of the file information 22 recorded in an information recording medium 18 and recording the file information 22 to a memory 13, a step for collating the file information 22 with the check code 23 and judging whether the file information is normal or not, and a step for using the file information 22 in the memory 13 in the case that the file information 22 is judged normal and acquiring the file information 22 from the information recording medium 18 again in the case that it is judged abnormal. In the case that a plurality of files exist, the step for adding the check code 23 and recording the file information 22 to the memory 13 prepares and adds the check code 23 every file information 22.
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