RECORDING METHOD AND REPRODUCTION METHOD SUITABLE FOR RECORDING/REPRODUCTION OF AV DATA, AND RECORDING DRIVE AND REPRODUCTION DRIVE.

摘要

In an information recording medium for recording and reproducing data thereon on a sector-by-sector basis, the recorded data being managed as at least one file by using a file structure, the file structure includes unused space management information for identifying a used region and an unused region. At least one defective region is registered as an unused region in the unused space management information, the at least one defective region being a region on the information recording medium which is incapable of proper reproduction of the recorded data. It skips defective region. Defects are managed on ECC block-by-ECC block basis.