Invention Grant
US09495994B2 Optical disc capable of recording address information with the same modulation on sides of adjacent grooves 有权
能够在相邻槽的侧面记录具有相同调制的地址信息的光盘

Optical disc capable of recording address information with the same modulation on sides of adjacent grooves
Abstract:
An optical disc medium includes a land and a groove at which information can be recorded. A predetermined number of address information units which record address information of the land or groove are provided in a circumferential direction of the optical disc medium. The address information unit of the land includes three or more address recording areas capable of recording address information. The address information is recorded on one area selected from among the three or more address recording areas. The address information unit of the land has address information which is recorded, in the same modulation, on the side of the inner adjacent groove and on the side of the outer adjacent groove. The one area to be selected from among the three or more address recording areas for recording the address information of the land is different among three address information units adjacently arranged in a radial direction.
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