Method and apparatus for recording and reproducing data...

G - Physics – 11 – B

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G11B 20/12 (2006.01)

Patent

CA 2525492

A write-once disc includes: a plurality of update areas in which a predetermined kind of update information is recorded; at least one main access information area in which main access information is recorded, the main access information indicating a final update area in which finally updated information is recorded among the plurality of update areas; and at least one sub access information area in which sub access information is recorded, the sub access information indicating a location of the finally updated information recorded in the final update area. Accordingly, an access time for reading a predetermined kind of information required to use the write-once disc can be reduced.

L'invention concerne un disque non réinscriptible comprenant: une pluralité de zones de mise à jour dans lesquelles un type prédéterminé d'informations de mise à jour est enregistré; au moins une zone d'informations d'accès principal dans laquelle des informations d'accès principal sont enregistrées, ces informations indiquant une zone de mise à jour finale dans laquelle des informations finalement mises à jour sont enregistrées dans la pluralité de zones de mise à jour; et au moins une zone d'informations de sous-accès dans laquelle des informations de sous-accès sont enregistrées, ces information indiquant un emplacement d'informations finalement mises à jour enregistrées dans la zone de mise à jour finale. En conséquence, on peut limiter le temps d'accès pour lire un type prédéterminé d'informations requis pour utiliser le disque non réinscritptible.

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