Process for storage on a disk of a plurality of series of...

Details Process for storage on a disk of a plurality of series of... Process for storage on a disk of a plurality of series of...

G - Physics

11

B

352/31.3

G11B 23/28 (2006.01) G11B 7/007 (2006.01)

Patent

CA 1248227

PROCESS FOR STORAGE ON A DISK OF A PLURALITY OF SERIES OF DATA INTENDED FOR DIFFERENT USERS, AND THE DISK PRODUCED BY THIS PROCESS ABSTRACT OF THE DISCLOSURE Process for the storage on a disk of a plurality of series of data intended for a plurality of users, comprising recording the series of data on concentric areas (5) of the disk and further comprising disposing on the disk at least one non-transparent or reflecting zone (7) which extends radially throughout the disk except for the area (5) con- taining data for the user for which the disk is intended, and rendering unintelligible the data carried by the areas of the disk other than those concerning said user. Fig. 1.

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