Information recording medium on which sector data generated from ECC block is recorded, information recording apparatus for recording sector data, and information reproduction apparatus for reproducing sector data

An information recording medium comprising:

• a management area where management information is recorded;
• and
• a plurality of physical sector areas used to record a plurality of physical sector data blocks, which are generated by combining some data contained in an ECC block containing a plurality of segmented blocks,
• wherein the ECC block as a source of the plurality of physical sector data blocks to be recorded in said plurality of physical sector areas is generated via a predetermined process, and
• the predetermined process generates the ECC block by:
• generating sector data which contains a data ID and is formed of a first number of bytes;
• generating re-arranged sector data by re-arranging data contained in the sector is data to predetermined positions;
• generating a sector block by combining a plurality of re-arranged sector data items;
• generating the plurality of segmented blocks by segmenting the sector block;
• generating outer-code parity data by encoding data in a column direction, which forms each segmented block;
• generating inner-code parity data by encoding data in a row direction, which forms each segmented block;
• and
• individually appending the generated outer- and inner-code parity data to each segmented block.