Patent ID: 7940634

Claim:
A method for recording information on a multilayer optical recording medium, the multilayer optical recording medium including three or more recording layers of an L 0 layer, an L 1 layer, . . . , and an L n-1 layer on a side farthest away from an incident surface of laser light to a side nearest to the incident surface of laser light when n is three or more, wherein, wavelength λ of the laser light is 405 nm., numerical aperture NA of an objective lens for the laser light is 0.85, the L n-1 layer includes a write-once read-multiple recording film, the L 0 layer has a phase change recording film and is rewritable at an available recording linear velocity, each recording layer is irradiated with the laser light and a recording mark is formed in order to record information, and when information is recorded again on the L 0 layer on which a recording mark has already been formed, the L 0 layer is irradiated with the laser light having erasing power to erase or attenuate the recording mark and then a recording mark is newly formed.