Patent ID: 6226247
Filing Date: 2001-05-01
Classification: G11B

Abstract:
A data recording apparatus for recording digital data to a data recording medium, comprising:input means for receiving input data to which a first error correction code was added, and instruction information, the instruction information being formed by data input by a user;sector segmenting means for forming a plurality of sectors from the input data, the sectors having a plurality of structures that include a first sector structure which is formed when the instruction information indicates that the input data is a first type, and a second sector structure which is formed when the instruction information indicates that the input data is a second type, the sector segmenting means executing an error correction using the first error correction code on the input data when the input data is the first type to form first corrected data, each sector having a multi-byte header;block segmentation means for forming a plurality of block units from the sectors, the block units having a plurality of structures that include a first block structure which includes a plurality of sectors having the first sector structure, and a second block structure which includes a plurality of sectors having the second sector structure, the block segmentation means including coding means for adding a second error correction code to each block unit;recording processing means for performing a predetermined digital modulation to the data to which the second error correction code was added, the recording processing means forming a block synch in each block unit, the block synch identifying a type of sector structure in the block unit;recording means for recording the modulated data to the data recording medium; andcontrol means to which the instruction information is inputted and which controls the sector segmenting means in response thereto.