Optical information recording medium and optical information recording medium reproducing device

An optical information recording medium reproducing device configured to:

• optically reproduce an optical information recording medium,
• the optical information recording medium including
• a continuously wobbling groove formed in advance by a CAW or a zone CAV,
• in which information is allowed to be recorded on the groove and a land adjacent to the groove,
• address information is recorded by modulating the wobble,
• the address information includes a sync pattern indicating a position of the address information and address data, and
• the sync pattern includes a plurality of first wobble patterns and a second wobble pattern between the first wobble patterns, and at least part of intervals of the first wobble patterns are set to unequal intervals;
• detect the first wobble patterns to detect the sync pattern;
• and
• decode the address data by the detection of the sync pattern.