CARD TYPE OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING METHOD FOR CARD TYPE OPTICAL INFORMATION RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a card type optical information recording medium which is usable in multiple applications, such as safety management, money management and service management and is difficult in taking up. SOLUTION: A card A for recording and reproducing information in compliance with the format of an optical disk has a ROM region 4 and WO region 3 concentrically around a center hole 5. The information usable by all persons holding the cards A is previously recorded in the ROM region 4. The individual person information specifying the persons holding the cards A is additionally recorded in a portion of the WO region 3 in a stage before distributing the cards A and the information arising by accompanying the use of the cards A by the person holding the cards A is additional recorded in the stage after the cards A are distributed in a portion of WO region 3 no recorded.