RECORD MEDIUM INCORPORATING BACKUP DOMAIN FOR CONTROLLING FAULTS AND FAULT CONTROL DATA; BACKUP DOMAIN ALLOCATION PROCESS ,AND FAULT CONTROL PROCESS Russian patent published in 2003 - IPC

FIELD: optical data media. SUBSTANCE: record medium has primary backup domain allocated during initialization; additional domain allocated after initialization, and/or dilated backup domain; faulty blocks in additional backup domain, and respective substitution sectors that have been recorded already in secondary fault list not meant for use as backup ones. Size of primary and additional backup domains is estimated by number of faults detected during initialization. EFFECT: provision for eliminating double substitution and taking blocks in good condition for faulty ones. 25 cl, 8 dwg, 2 tbl