Information recording medium to which extra ecc is applied, and method and apparatus for managing the information recording medium

A method of recording an information recording medium comprising:

• determining whether extra error correction coding (ECC) is to be applied with respect to data to be recorded on the information recording medium, and an extra ECC application rate;
• assigning an area of the information recording medium to record a data block including an extra parity generated by applying the extra ECC to the data to be recorded on the information recording medium;
• assigning, to the information recording medium, an extra ECC management information area to record extra ECC management information to manage the extra ECC;
• and
• recording or updating the extra ECC management information in the extra ECC management information area.

A method of initializing an information recording medium comprising:

• determining whether extra ECC is to be applied to the information recording medium;
• if the extra ECC is applied to the information recording medium, assigning an area of the information recording medium to record a data block including an extra parity generated by applying the extra ECC with respect to user data to be recorded on the information recording medium;
• assigning to the information recording medium an extra ECC management information area to record extra ECC management information to manage the extra ECC;
• and
• recording information about areas assigned to the information recording medium on the information recording medium.

A method of applying extra error correction coding (ECC) just before recording of an information recording medium is finalized, comprising:

• determining whether extra ECC is to be applied to the information recording medium;
• if the extra ECC is applied to the information recording medium, assigning an unused area of the information recording medium to record a data block including an extra parity generated by applying the extra ECC with respect to user data to be recorded on the information recording medium;
• reading the user data recorded on the information recording medium;
• and
• recording the data block to the assigned area of the information recording medium.

A method to generate an extra parity error correction coding (ECC) block, the method comprising:

• generating a plurality of ECC blocks, each ECC block having an inner parity and an outer parity;
• interleaving rows of each of the plurality of ECC blocks with rows of another of the plurality of ECC blocks to create a plurality of extra ECC blocks, each having extra parities;
• collecting the extra parities of each of the extra ECC blocks;
• and
• generating an extra parity ECC block having the collected extra parities.

A method to record a data block including extra error correction coding (ECC) to an information storage medium in which an area to record extra ECC management information to manage the extra ECC is allocated, the method comprising:

• generating a plurality of extra ECC blocks from an ECC block obtained by encoding user data;
• generating an extra parity ECC block using the plurality of extra ECC blocks;
• generating extra ECC management information, wherein the extra ECC management information includes information on extra ECC and a mapping relation between information on locations in which ECC blocks for user data are recorded and information on locations in which extra parity data blocks corresponding to the user data are recorded;
• recording the extra parity ECC blocks onto the information storage medium in an area allocated for user data;
• and
• recording the extra ECC management information onto the information storage medium in the area allocated for extra ECC management information