Recording medium with write protected defect list

G - Physics – 11 – B

Patent

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Details

G11B 20/18 (2006.01) G11B 20/12 (2006.01)

Patent

CA 2344233

The invention relates to recording of information, in particular a real-time audio and/or video signal, in a recording track (3) of a recording medium (2) divided into blocks (45). The recording medium contains a defect list (BS) of addresses of blocks (45*) which are known to be defective. This list is read and during the recording process the defective blocks are skipped. The recording process is performed without any read-after-write check so as to speed up the process. The defect list is updated by noting, during playback, which blocks give rise to reading problems and by including the addresses of these blocks in the defect list on the recording medium.

L'invention traite de l'enregistrement d'informations, en particulier d'un signal audio et/ou vidéo en temps réel, sur une piste (3) d'enregistrement d'un support d'enregistrement (2) divisé en blocs (45). Ledit support contient une liste de défectueux (BS) d'adresses de blocs (45*) connus. Cette liste est lu et, pendant le processus d'enregistrement, les blocs défectueux sont omis. Le processus d'enregistrement est exécuté sans procéder à une vérification par lecture avant écriture de façon à accélérer ledit processus. On actualise la liste de défectueux en notant, pendant la lecture, les blocs de lecture problématiques et en incluant les adresses desdits blocs dans la liste de défectueux sur le support d'enregistrement.

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