| 摘要 |
IN A RECORDING MATERIAL, PHYSICAL CHARACTERISTIC INFORMATION OF THE RECORDING MEDIUM, AND MORE SPECIFICALLY, MATERIAL INFORMATION REPRESENTING THE MATERIAL OF THE DISC, IS RECORDED. ACCORDINGLY, A RECORDING APPARATUS AND A READING APPARATUS EASILY AND ACCURATELY DETERMINE THE PHYSICAL CHARACTERISTICS OF THE DISC, THEREBY MAKING IT POSSIBLE TO PROVIDE SUITABLE SETTING FOR PERFORMING AN OPERATION. |
