| 摘要 |
For an optical card in which write-once-information can be optically recorded as a file, an optical card provided with a registered region of directory information including a file name discriminating a file and a file size, a registered region of directory modified information for enabling to delete and modify the directory information, such as renaming is disclosed. Also, a management method of an optical card file in which the directory information can be deleted and modified, such as renamed by the directory modified information is disclosed.
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