Information storage medium with first and second recording regio

Details Information storage medium with first and second recording regio Information storage medium with first and second recording regio

1992-06-05

1995-08-29

Sugarman, Scott J.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369 32, 369111, 3692753, 369 48, G11B 7007

Patent

active

054467241

ABSTRACT:
A recording medium is provided for use with a device for recording data on and reading data from the recording medium using first and second recording and reading methods. A first recording region of the recording medium stores data recorded using the first method and includes blocks having a first data storage capacity. A second recording region of the recording medium stores data recorded using the second method and includes blocks having a second data storage capacity. The first and second recording regions may be, for example, first and second offset helical grooves formed on the recording medium. A device for recording and reading data on the recording medium using the first and second recording methods in accordance with identification data identifying the methods is also provided.

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