Patent ID: 7460464
Filing Date: 2008-12-02
Classification: G11B

Abstract:
1. An information recording medium storing: data that is recorded in a block which includes a plurality of sectors; first dummy data that is recorded on an area just before the block; second dummy data that is recorded on an area just after the block; and end dummy data that is recorded on an area just after the area of the second dummy data, wherein the first dummy data is different in data length than the second and end dummy data, includes a predetermined common pattern with the second and end dummy data, and has a first repetitive data pattern in which the predetermined common pattern is repeated at predetermined times, wherein the second dummy data is different in data length than the first and end dummy data, includes the predetermined common pattern with the first and end dummy data, and has a second repetitive data pattern in which the predetermined common pattern is repeated at predetermined times, and wherein the end dummy data is different in data length than the first and second dummy data, includes the predetermined common pattern with the first and second dummy data, and has a third repetitive data pattern in which the predetermined common pattern is repeated at predetermined times, and wherein address information is superimposed on a wobble of a track of the information recording medium and the block forms a unit of an error correction code.