Recording medium and method and apparatus for controlling the recording using sequence numbers of control information units

A method for controlling a recording medium, comprising the steps of:

• a) reading control information in a plurality of first control information units, the control information including information which is indicative of the number of consecutive second control information units among a plurality of second control information units, the control information including information indicating a sequence number of the first control information units contained in the consecutive second control information unit, the second control information unit being formed by grouping at least one first control information unit among the plurality of first control information units, and
• b) controlling the recording medium using the control information recorded in at least one first control information unit contained in the consecutive second control information units.

An apparatus for controlling a recording medium comprising:

• a pickup configured to record or reproduce data on/from the recording medium;
• and
• a controller, operatively coupled to the pickup, configured to control the pickup to read control information in a plurality of first control information units from the recording medium, and to identify the control information including information, which is indicative of the number of consecutive second control information units among a plurality of second control information units, the control information including information indicating a sequence number of the first control information units contained in the consecutive second control information unit, the second control information unit being formed by grouping at least one first control information unit among the plurality of first control information units.