OPTICAL DATA CARRIER, RECORDING/REPRODUCTION DEVICE, RECORDING/REPRODUCTION DEVICE Russian patent published in 2006 - IPC G11B7/00 

FIELD: data carriers.

SUBSTANCE: for informational data carrier, information about status of defects of blocks in expanded or newly distributed reserve area, created in previously determined area of informational data carrier, is altered and recorded onto informational data carrier, if reserve area for replacement block is expanded or newly allocated to replace defective block. By controlling information about status of defects for blocks in expanded or newly allocated reserve area, unnecessary operations of accumulator system are abolished, resulting in increased efficiency of accumulator system.

EFFECT: increased efficiency.

10 cl, 22 dwg