Abstract: A method of write frequency management for writing recorded data to an optical rewritable storage medium. The optical rewritable storage medium comprises a data area and a count area. The data area comprises multiple data units, the count area comprises multiple values, and each value represents a write frequency corresponding to one of the data units. The method receives a data write instruction comprising a write address range and the recorded data, writes the recorded data to the data units corresponding to the write address range, and updates the values corresponding to the write address range.