Method of recording information in optical recording medium, information recording apparatus and optical recording medium

摘要

An information recording method for recording information in an optical recording medium having at least stacked first and second information recording layers by projecting a laser beam whose power is modulated thereonto via a light incidence plane, and setting a pulse width of a multi-pulse of the laser beam when information is to be recorded in the first information recording layer to be shorter than that when information is to be recorded in the second information recording layer, thereby recording information in the optical recording medium.