Information recording medium, information recording method, and information reproducing method

A method of recording information in a storage medium, the method comprising applying a recording mark to a storage medium, wherein the storage medium comprises a recording film that comprises a recording layer and a light reflection layer;

• pre-grooves, and a plurality of lands each of which is sandwiched between the pre-grooves and positioned adjacent to each other, the pre-grooves and the lands being formed on an interface between the recording layer and the light reflection layer, wherein the recording film includes a light reflectivity that enables reproduction with light of 655±5 nm, wherein the recording layer has a recording sensitivity with respect to light with a wavelength shorter than 655±5 nm, and wherein the recording mark is configured formed on the pre-groove of the recording layer by using light of a wavelength shorter than 650±5 nm.

A method of reproducing information from a storage medium, the storage medium comprising a recording film that comprises a recording layer and a light reflection layer, the storage medium further comprising pre-grooves and lands each of which lands is sandwiched between the pre-grooves adjacent to each other, the pre-grooves and the lands being formed on an interface between the recording layer and the light reflection layer, wherein the recording film includes a light reflectivity that enables reproduction with light of 650±5 nm, wherein the recording layer includes a recording sensitivity with respect to light by a wavelength shorter than 655±5 nm, a recording mark is formed on the pre-groove of the recording layer by using light with a wavelength shorter than 650±5 nm, the method comprising reproducing information recorded on the recording film by using the light of 650±5 nm.