SYSTEM OF SELLING MEMORY CARD STORING DATA SUCH AS VIDEO IMAGE OR MUSIC AS MEDIUM LIKE CONVENTIONAL CD OR DVD USING NON-VOLATILE MEMORY COMPOSED OF SEMICONDUCTOR ELEMENT TO BE USED AS ONE-TIME PROGRAM MEMORY(OTP-ROM) OR MEMORY CARD WITH BUILT-IN OTP-ROM

摘要

PROBLEM TO BE SOLVED: To solve the problem that a conventional memory card is rewritable for many times and exiting data may be deleted, while an SD card has a switch to prevent data deletion, which can be easily turned off, so that the risk of deletion cannnot completely be eliminated and the memory card cannot be used as a medium like a CD or a DVD.

SOLUTION: Data are stored in a memory card with a built-in PROM without deleting existing data, to be easily sold as a commodity.

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