Patent ID: 7965591

Claim:
A method of manufacturing an information recording medium having a recording layer which has a groove track and a land track, such that only one of the land track and the groove track is to be selected as an information recording track of the recording layer, such that information is to be recorded on only the selected one of the land track and the groove track of the recording layer, and such that the one of the land track and the groove track onto which the information is to be recorded has a wobbled portion having address information, wherein the information recording medium includes a data area onto which the information is to be recorded and includes a BCA area storing, in a form of barcode marks, information related to the information recording medium, the BCA area being concentrically located closer to a center of the information recording medium than the data area, wherein the wobbled portion includes a fundamental waveform signal having a fundamental frequency, and the wobbled portion includes a signal that is different from the fundamental frequency, wherein the signal that is different from the fundamental frequency is added to or subtracted from a part of the fundamental waveform signal, so as to add the address information to the wobbled portion, and wherein the method comprises: selecting the information recording track of the recording layer from only one of the land track and the groove track, so that the information is only to be recorded onto the selected one of the land track and the groove track of the recording layer; setting the wobbled portion of the information recording track, such that (i) a starting direction of a wobble of the groove track of the recording layer, when the selected information recording track is the groove track, and (ii) the starting direction of the wobble of the land track of the recording layer, when the selected information recording track is the land track, are reverse directions of one another with respect to a reproduction direction, even when same address information is recorded in the wobbled portion; forming the wobbled portion of the selected information recording track according to the starting direction of the wobble of the set wobbled portion; and recording the barcode marks in the BCA area to provide a code indicating onto which of the groove track and the land track a tracking servo is executed.