Patent ID: 6999392

Claim:
An optical recording method for recording a disk-shaped optical recording medium having a phase change recording layer comprising steps of: rotating the disk-shaped optical recording medium at a constant angular velocity; and forming amorphous recorded marks in the recording layer, wherein when a minimum signal has a length of S L , a minimum amorphous recorded mark corresponding to said minimum signal has a maximum width of M w , and a width E w that is 0.1 M w , a position on a leading edge side of the amorphous recorded mark at the width of E W is an effective leading edge, a position on a trailing edge side of the amorphous recorded mark at the width of E W is an effective trailing edge, a distance between the effective leading edge and the effective trailing edge is an effective length M L a distance between the effective leading edge and the position at which the width starts to decrease on the trailing edge side is W L , and the minimum amorphous recorded marks are formed such that W L /M L incrementally or gradually decreases from a radially inner side to a radially outer side of the optical recording medium.