Apparatus for reproducing data from information storage medium having multiple storage layers with optimal power control (OPC) areas and buffer areas

A reproducing apparatus, comprising:

• a reader which reproduces data from an information storage medium, the information storage medium including a plurality of information storage layers;
• and
• a controller which controls the reader to reproduce the data from the information storage medium,
• wherein each of the information storage layers includes an optimal power control area used for obtaining an optimum recording condition, and at least one of a buffer area and a reproduction-only area storing reproduction-only data, and
• wherein a portion of the reproduction-only area of one of the information storage layers is aligined with and faces the optical power control area and the buffer area of an adjacent one of the information storage layers.

A reproducing apparatus, comprising:

• a reader which reproduces data from an information storage medium, the information storage medium including a plurality of information storage layers numbered consecutively;
• and
• a controller which controls the reader to reproduce the data from the information storage medium,
• wherein each of the plurality of information storage layers comprises an optimal power control area, and at least one of a buffer area and a reserved area disposed at one side of the optimal power control area,
• wherein the optimal power control areas of odd-numbered information storage layers are aligned with respect to each other, and the optimal power control areas of even-numbered information storage layers are aligned with respect to each other and are out of alignment with the optimal power control areas of the odd-numbered information storage layers, and
• wherein one of the buffer area and the reserved area disposed in one of the odd-numbered information storage layers is aligned with and faces the optimal power control area disposed in an adjacent one of the even-numbered information storage layers.

A reproducing apparatus, comprising:

• a reader which reads data from an information storage medium, the information storage medium including a plurality of information storage layers each having an optimal power control area and at least one of a buffer area and a reserved area disposed at one side of the optimal power control area;
• and
• a controller which controls the reader to read the data,
• wherein the optimal power control areas in adjacent ones of the information storage layers are disposed at different radii of the information storage medium such that one of the buffer area and the reserved area disposed in one of the information storage layers is aligned with and faces the optimal power control area disposed in an adjacent one of the information storage layers.