Patent ID: 7502285
Filing Date: 2009-03-10
Classification: G11B

Abstract:
1. An information recording apparatus for recording record information onto an information recording medium comprising at least: a first recording layer in which a first recording area can be formed, and a second recording layer which has a relative discrepancy with the first recording layer in a radial direction and in which a second recording area can be formed, said information recording apparatus comprising: a writing device capable of writing the record information into the first recording layer and the second recording layer; an obtaining device for obtaining offset information which indicates the relative discrepancy; a calculating device for calculating an address which indicates a second border point of the second recording area facing a first border point of the first recording area, on the basis of the obtained offset information; and a controlling device for controlling said writing device to write the record information (i) to form the first recording area, with the first border point as a recording end position or a recording start position, and (ii) to form the second recording area, with the second border point which is indicated by the calculated address as a recording end position or a recording start position.