Information recording medium and region management method for a plurality of recording regions each managed by independent file system
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United States of America Patent
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Jan 26, 2010
Grant Date -
Aug 31, 2006
app pub date -
Feb 19, 2004
filing date -
Feb 20, 2003
priority date (Note) -
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Abstract
A region management method for an information recording medium capable of maintaining data interchangeability among devices and preventing malfunction when one information recording medium shared among devices different in type or number of file systems that can be interpreted by devices is provided. A recording region of the information recording medium is divided into a plurality of regions, and region information such as position and size of each region is held in the information recording medium. Different file systems are constructed in individual data recording regions. In response to a command from an information processing apparatus, accessible regions by the information processing apparatus are changed over by, for example, referring to validity flag information that indicates a presently valid region.
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