Recording medium, method and apparatus for reproducing data on the recording medium, and method and apparatus for recording data on the recording medium

A method of reproducing data from a recording medium on which the data is recorded in units of clusters, the method comprising:

• moving an optical head unit to a target location of the recording medium at which data corresponding to address unit number (AUN) address information is recorded;
• and
• reproducing the data at the target location of the recording medium;
• wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit AUN address information, and the AUN address information comprises:
• a reserved area recorded in 4 bits;
• layer information, recorded in 3 bits, indicating a layer on which the data corresponding to the AUN address information is recorded;
• and
• location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

An apparatus for reproducing data from a recording medium on which the data is recorded in units of clusters, the apparatus comprising:

• a control unit to move an optical head unit to a target location of the recording medium at which data corresponding to address unit number (AUN) address information is recorded;
• and
• a pickup unit to reproduce the data at the target location of the recording medium;
• wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit AUN address information, and the AUN address information comprises:
• a reserved area recorded in 4 bits;
• layer information, recorded in 3 bits, indicating a layer on which the data corresponding to the AUN address information is recorded;
• and
• location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

A method of recording data on a recording medium in units of clusters, the method comprising:

• generating a cluster comprising addresses and data;
• and
• recording the generated cluster on the recording medium;
• wherein each of the clusters comprises a plurality of address fields, each of the address fields comprises 32-bit address unit number (AUN) address information, and the AUN address information comprises:
• a reserved area recorded in 4 bits;
• layer information, recorded in 3 bits, indicating a layer on which data corresponding to the AUN address information is recorded;
• and
• location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.

An apparatus for recording data on a recording medium in units of clusters, the apparatus comprising:

• a signal processing unit to generate a cluster comprising addresses and data;
• and
• a pickup unit to record the generated cluster on the recording medium;
• wherein the cluster comprises a plurality of address fields, each of the address fields comprises 32-bit address unit number (AUN) address information, and the AUN address information comprises:
• a reserved area recorded in 4 bits;
• layer information, recorded in 3 bits, indicating a layer on which data corresponding to the AUN address information is recorded;
• and
• location information, recorded in 25 bits, indicating a location of the data corresponding to the AUN address information.