Optical disc record carrier with wobbled grooves that permit recording on the grooves and lands, apparatus for manufacturing such a record carrier, and recording and/or reproducing apparatus for such a record carrier

摘要

An optical disc record carrier having at least one wobbled groove that permits information recording on both groove and land tracks is provided. Each groove has a sync wobbling modulated with a continuous signal and an address wobbling. The address wobbling includes an address portion including address information of each sector. The address portion comprising presence of a first predetermined number of wobbles and absence of a second predetermined number of wobbles. The presence and absence correspond to respective logical values of binary system. The grooves and lands are substantially the same in width throughout and wobble in phase.