Recording medium, method and apparatus for providing management information

A non-transitory computer-readable recording medium providing management information for data of a digital stream, the data of the digital stream grouped into a plurality of object units, the recording medium comprising:

• at least one object including one or more of the object units, each of the object units having data grouped by a receiving apparatus based on a predetermined time period of an arrival time clock of the receiving apparatus, and
• management information for accessing the data of the digital stream by the receiving apparatus, the management information including map information and indication information,
• wherein the map information includes object unit information associated with the object units, and
• wherein the object unit indication information indicates the data of the digital stream are grouped into the object units based on the predetermined time period.

An apparatus for providing management information, comprising:

• a formatter configured to group data of a digital stream into a plurality of object units based on a predetermined time period of an arrival time clock, and to group one or more object units into an object;
• and
• a controller configured to create management information for accessing the data of the digital stream, the management information including map information and indication information,
• wherein the map information includes object unit information associated with the object units,
• wherein the object unit indication information indicates the data of the digital stream are grouped into the object units based on the predetermined time period, and
• wherein the controller is further configured to record the created management information and grouped object units on a recording medium.

An apparatus for reproducing data, comprising:

• a reproducing unit;
• and
• a controller configured to control the reproducing unit to reproduce data of a digital stream from a recording medium using management information,
• wherein the data of the digital stream are grouped into a plurality of object units based on a predetermined time period of an arrival time clock, one or more object units grouped into an object,
• wherein the management information includes map information and indication information,
• wherein the map information includes object unit information associated with the object units, and
• wherein the object unit indication information indicates the data of the digital stream are grouped into the object units based on the predetermined time period.

A method of providing management information by an apparatus, comprising;

• grouping, by the apparatus, data of a digital stream into a plurality of object units based on a predetermined time period of an arrival time clock, and grouping one or more object units into an object;
• and
• creating, by the apparatus, management information for accessing the data, the management information including map information and indication information,
• wherein the object unit indication information indicates the data of the digital stream are grouped into the object units based on the predetermined time period.

A method of reproducing data from a recording medium by an apparatus, comprising:

• reproducing, by the apparatus, management information for accessing data of a digital stream from the recording medium,
• wherein the management information includes map information including object unit information associated with the object units, and
• wherein the management information includes indication information that indicates if the data of the digital stream are grouped into the object units based on the predetermined time;
• and
• reproducing, by the apparatus, the data of the digital stream grouped into a plurality of object units using the management information based on a predetermined time period of an arrival time clock, one or more object units grouped into an object.