| abstract |
The present invention provides a storage medium, a reproducing method, and a recording method with sufficient reproduction durability. A storage medium having a system lead-in area, a data lead-in area, and a data area, wherein the data lead-in area is outside the system lead-in area, and the data is outside the data lead-in area. There is an area, and the same data is recorded in the system lead-in area and the data lead-in area. [Selection] Figure 22 |