Patent ID: 7190663
Filing Date: 2007-03-13
Classification: G11B

Abstract:
1. An information recording medium comprising: a wobble groove including a general wobble pattern area and a specific wobble pattern area, the recording medium configured to record recording data on the wobble groove by modulating the recording data into modulated data by a modulation method in which the recording data of m bits is converted into n channel bits and the number of continuous “0”s is 1 (at minimum) and forming recording marks according to the modulated data in the general wobble pattern area and the specific wobble pattern area of the wobble groove, the recording data forming error correction blocks, wherein an intermediate data is placed between at least a part of the error correction blocks and at least another part of the error correction blocks, the intermediate data includes a post amble, the post amble and the part of the error correction blocks forms a unit of the recording data, wherein an end position of the general wobble pattern area is positioned in the unit of the recording data, and the specific wobble pattern area records a specific wobble pattern used for locating a recording head position of a next unit of recording data, the specific wobble pattern differing from a general wobble pattern recorded in the general wobble pattern area.