Method of and device for recording information

Details Method of and device for recording information Method of and device for recording information

G - Physics

11

B

G11B 20/18 (2006.01)

Patent

CA 2344414

A method is described for writing real time video signals on an optical disc (2) having a recording area (40) which comprises an administrative area (43), a spare area (42), and a user area (41). Normal recording takes place in blocks (45) in a first pre-reserved area (NW) of a free part (47) of the user area (41). If during the recording process a defective block (45*) is encountered a replacement recording having the size of a plurality of blocks is made in a second pre-reserved area (RW) of the free part (47) of the user area (41), after which normal recording continues in the first pre-reserved area (NW). On the one hand, this limits the number of jumps for replacement recording and, on the other hand, it results in the storage capacity of the disc (2) being used very efficiently.

Cette invention concerne in procédé d'écriture de signaux vidéo en temps réel sur un disque optique (2) présentant une région d'enregistrement (40) composée d'une zone de gestion (43), d'une zone libre (42) et d'une zone utilisateur (41). L'enregistrement normal à lieu en blocs (45) dans une première zone pré-réservée (NW) d'une partie libre (47) de la zone utilisateur (41). En cas de rencontre de blocs (45) défectueux pendant l'enregistrement, on procède à un enregistrement de rechange présentant une pluralité de blocs dans une seconde zone pré-réservée (RW) de la partie libre (47) de la zone utilisateur (41), puis l'enregistrement reprend normalement dans la première zone pré-réservée (NW). D'une part, ce procédé permet de limiter le nombre de sauts pour l'enregistrement de rechange et, d'autre part, il assure une exploitation optimale de la capacité de stockage du disque (2).

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