Patent ID: 7496013

Claim:
A method of recording data to an information storage medium comprising, obtaining an optimal recording condition using an optimal power control area in a first information storage layer and/or a second information storage layer; and recording data to the first and/or second information storage layers according to the obtained optimal recording condition, wherein: the first information storage layer is adjacent to the second information storage layer, the first information storage layer comprises a first optimal power control area and a first reserved area adjacent to the first optimal power control area, the second information storage layer comprises a second optimal power control area and a second reserved area adjacent to the second optimal power control area, a beginning or an end of the first optimal power control area of the first information storage layer is aligned with a beginning or an end of the second reserved area of the second information storage layer, and a beginning or an end of the second optimal power control area of the second information storage layer is aligned with a beginning or an end of the first reserved area of the first information storage layer.