Recording medium with format for preventing unauthorized copying, and reproducing apparatus for same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 6, 2000
Grant Date -
N/A
app pub date -
Jun 26, 1997
filing date -
Jul 4, 1996
priority date (Note) -
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Abstract
A recording medium conforming with a specific physical format of Digital Video Disc/Digital Versatile Disc (DVD) or the like is contrived to achieve superior sound quality in audio data recording and reproduction, common usability of data, and enhanced interchangeability of an apparatus. In this recording medium, identification data signifying the existence of recorded data of a second data format such as Direct Stream Digital Disc (DSD) different from a first data format such as DVD is included in physical format management information recorded in a lead-in area. The data of such second data format is recorded in a data area in conformity with the physical format management information. And second data management information of a Table of Contents (TOC) is recorded at a predetermined position to manage an operation of reproducing the data of the second data format.
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