Patent ID: 6977786

Claim:
An information recording method comprising: using an information recording medium in which a magnetic recording layer, which comprises a ferromagnetic metallic thin film including vertical magnetic anisotropy, is formed on at least one surface of a disk-shaped support, and in which tracking information is recorded in advance on the magnetic recording layer in accordance with directions that are different from magnetization directions; carrying out tracking with a magneto-optical effect based on the tracking information recorded on the magnetic recording layer; recording data magnetically by applying a magnetic field perpendicular to a disk surface to the magnetic recording layer; and reading the data with a magnetic head, wherein the magnetic recording layer is magnetized in advance for tracking in one of a concentric circle form and a spiral form with respect to the center of the disk, and is magnetized such that magnetized regions comprising different magnetization directions are alternately arranged in a radial direction, and the tracking information is recorded thereon.