METHOD FOR RECORDING DATA AND ALLOTTING AREAS ON A DISC-TYPE INFORMATION STORAGE MEDIUM, ITS APPARATUS, AND ITS INFORMATION STORAGE MEDIA, BY CONTROLLING LENGTH OF TRACK CIRCUMFERENCE ACCORDING TO RATIO OF LENGTH OF RECORD UNIT BLOCK AND REGENERATION BLOCK UNIT

摘要

PURPOSE: A METHOD FOR RECORDING DATA AND ALLOTTING AREAS ON A DISC-TYPE INFORMATION STORAGE MEDIUM, ITS APPARATUS, AND ITS INFORMATION STORAGE MEDIA are provided to minimize deterioration of a data reliability though there occurs an error caused by a dust, a scratch or a fingerprint stained or generated on a data area. CONSTITUTION: A data storage medium comprises a single data recording layer(L0). In a case that a record unit block is shorter than a regeneration unit block, a circumference of a track formed on a data area is longer than the regeneration unit block. Conversely, in a case that a record unit block is longer than a regeneration unit block, a circumference of a track formed on a data area is longer than the record unit block. A lead-in area is formed at an inner circumference of the data area, and a lead-out area is formed at an outer circumference of the data area.