Method and apparatus for managing disc defects using updateable dma, and disc thereof

A double record layer write once disc having a first record layer in which a lead-in area, a data area, and an outer area are sequentially located and a second record layer in which an outer area, a data area, and a lead-out area are sequentially located, the disc comprising a defect management area (DMA) that is present in at least one of the lead-in area, the lead-out area, or the outer area,

• wherein defect information and defect management information are repeatedly recorded in the DMA according to a recording operation.

A recording apparatus comprising:

• a recording/reading unit that records data on or reads data from a disc;
• and
• a controller that controls the recording/reading unit to repeatedly record defect information regarding data, which is recorded in a data area of the disc per recording operation, as defect information in a defect management area (DMA) that is present at least one of a lead-in area or a lead-out area of the disc, and record management information for managing the defect information as defect management information in the DMA.

A recording apparatus comprising:

• a recording/reading unit that records data on or reads data from a disc;
• and
• a controller that controls the recording/reading unit to record defect inform regarding data, which is recorded in a data area of the disc according to a first recording operation, as a plurality of first defect information in a defect management area (DMA) that is present in at least one of a lead-in area or a lead-out area of the disc, record management information for managing the first defect information as first defect management information in the DMA, record defect information regarding data, which is recorded in the data area according to a second recording operation, as a plurality of second defect information in the DMA, and record management information for managing the second defect information as second defect management information in the DMA.