Patent ID: 6889352

Claim:
A method for recording a digital signal on a recording medium, comprising: a step to form a plurality of data sectors, each comprising address information indicating its position on a recording medium and main data obtained from a stream of recording information, a step to divide the data sectors to produce a plurality of sector data blocks, a step to form a plurality of correction blocks, each comprising one of the sector data blocks, first correction codes for correcting a first kind of error, and second correction codes for correcting a second kind of error, and a step to combine at least two of the correction blocks to produce an interleave allocation, wherein a plurality of interleave allocations is formed by combining two or more of the correction blocks for each interleave allocation, wherein each line of data from among the second correction codes of the correction blocks is associated with one of the interleave allocations such that lines of second corrections codes of adjacent interleave allocations are from different correction blocks.