Patent ID: 7350129

Claim:
A data recording medium manufactured by an apparatus, the data recording medium storing information by forming error correction code (ECC) blocks, the ECC blocks comprising: 32 sectors including said information, each sector having twelve rows; a first PO creation block relating to one of the ECC blocks, the first PO creation block including six rows of said twelve rows in each sector and PI attached to each of the rows; a second PO creation block relating to an other one of the ECC blocks, the second PO creation block including the other six rows of said twelve rows in each sector and PI attached to each of the rows; a first PO created into the first PO creation block; and a second PO created into the second PO creation blocks, wherein the recording process of the recording apparatus comprises: creating the first PO creation block; creating the second PO creation block; creating the first PO into the first PO creation block, each row of the first PO being interleaved into the first PO creation block; creating the second PO into the second PO creation block, each row of the second PO being interleaved into the second PO creation block; and creating the PI for each of the rows.