ZCAV optical and method for accessing thereof

A drive of an optical disc, which is divided into a plurality of zones in a radius direction, and on both of a land track and a groove track of which data can be accessed, and further on which pieces of address information are recorded so that a same piece of address information can be used for any track of the land track and the groove track:

• wherein
• said pieces of address information being recorded so that they are successively continuous addresses in each zone and they are discontinuous in order that an address jumping by addresses of a previous zone in an access order thereof becomes a forefront address of a zone next to the previous zone at a beginning of the zone next to the previous zone:
• said drive of an optical disc comprising control means for controlling operation of said drive of an optical disc,
• wherein
• access to either of the land track and the groove track is performed by means of the pieces of address information in each zone:
• said drive returns to a first address position in a zone after an address in the either track becomes a last address of the zone:
• said drive performs the access by recognizing an address being continued from a last address of the either track suppositionally on the pieces of address information as an address of another track of the land track and the groove track:
• and
• said drive moves to a next zone after the address of the other track becomes a last address of a zone.