| 摘要 |
PROBLEM TO BE SOLVED: To provide an information recording medium, a data reading/writing method and a data reading/writing program capable of improving a writing processing speed compared with that of a general data guarantee method.SOLUTION: A logical block number Ny is held in a data storage area block, and a physical block number Nx of a preliminary area block is held in a preliminary area management block. When performing writing processing, the preliminary area block is retrieved by referring to the preliminary area management block, and writing data is written in the preliminary area block with the retrieved preliminary area block being a new data storage area block. After that, the physical block number Nx of the old data storage area block is written in the preliminary area management block as a new physical block number Nx of the preliminary area block. |
