Patent ID: 7440368

Claim:
A recoding and/or reproducing apparatus to record and/or read data with respect to an information storage medium, wherein the information storage medium comprises a first information storage layer comprising a first optimal power control area and a first reserved area, and a second information storage layer comprising a second optimal power control area and a second reserved area disposed such that 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, the recoding and/or reproducing apparatus comprising: an optical pickup which records data on and/or reads the data from the information storage medium at an optical power; and a controller which controls the optical pickup to record and/or read the data on the information storage medium and to determine an optimum recording power at which to set the optical power during recording using the first and/or second optimal power control areas, wherein the first reserved area is disposed adjacent to the first optimal power control area and the second reserved area is disposed adjacent to the second optimal power control area.