HIGH-DENSITY READ-ONLY OPTICAL DISC, AND OPTICAL DISC APPARATUS AND METHOD USING THE SAME BACKGROUND OF THE INVENTION

摘要

Disclosed is a recording medium, comprising: a data area including straight pits for main data; and a lead-in area including wobbled pits for control information, the wobbled pits being formed along a specific recording pattern which is included in the lead-in area and modulated by applying biphase modulation method, wherein the specific recording pattern includes both a first section where a transition is present within a predetermined period and a second section where the transition is absent within a predetermined period.