Information record medium on which audio information differing in recording methods are recorded and apparatus for reproducing the same

An information record medium comprising:

• an audio information recording area on which a plurality of audio information which are different in recording method are recorded;
• and
• a control information recording area on which control information required to reproduce the plurality of audio information recorded on the audio information recording area is recorded,
• the control information recorded on the control information recording area including identification information indicating that the plurality of audio information are same in content and different in recording method with each other,
• wherein the control information includes a plurality of first division information for identifying first division units respectively so as to divide each of the plurality of audio information recorded on the audio information recording area by the first division units respectively,
• the first division information, which indicates that the audio information divided by the first division units belongs to a same first division unit, is provided as the identification information for each of the plurality of audio information same in content and different in recording method,
• wherein the control information further includes:
• a plurality of second division information for identifying second division units respectively so as to divide each of the plurality of audio information recorded on the audio information recording area by the second division units as a single reproduction unit;
• and
• a plurality of management information for correlating the plurality of second division information and the plurality of first division information with each other so that the audio information divided by the first division units are composed of one or a plurality of the audio information divided by the second division units, and
• the management information is provided for each of the plurality of audio information so as to respectively correlate the second division information, which identifies a same second division unit to which the plurality of audio information same in content and different in recording method belong, with the first division information for identifying the same first division unit to which the plurality of audio information same in content and different in recording method belong, for each of the plurality of audio information same in content and different in recording method.

An information record medium comprising:

• an audio information recording area on which a plurality of audio information are recorded;
• and
• a control information recording area on which control information required to reproduce the plurality of audio information recorded on the audio information recording area is recorded,
• wherein the control information recorded on the control information recording area including:
• a plurality of first division information for identifying first division units respectively so as to divide each of the plurality of audio information recorded on the audio information recording area by the first division units respectively;
• a plurality of second division information for identifying second division units respectively so as to divide each of the plurality of audio information recorded on the audio information recording area by the second division units as a single reproduction unit;
• and
• a plurality of management information for correlating the plurality of second division information and the plurality of first division information with each other so that one first division unit is composed of a plurality of audio information divided by the second division units,
• wherein the plurality of audio information divided by the second division units are same in content and different in recording method, and recorded at different recording positions in the audio information recording area.

An information record medium comprising:

• an audio information recording area on which a plurality of audio information having different attributes respectively are recorded;
• and
• a reproduction control information recording area on which a plurality of reproduction control information defined for each of the plurality of audio information is recorded,
• wherein the reproduction control information recording area including identification information for correlating the plurality of audio information having different attributes respectively with each other, the identification information comprising:
• attribute information indicating attribute of the audio information;
• and
• block type information indicating whether the plurality of audio information are different in a channel number or not and whether the plurality of audio information are different in an encoding method or not.