METHOD AND APPARATUS FOR DELETING DATA STORED ON RECORDING MEDIUM, RECORDING MEDIUM WITH THE METHOD RECORDED THEREON, AND METHOD AND APPARATUS FOR RESTORING DELETION DATA, AND RECORDING MEDIUM WITH THE METHOD RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To provide a method for deleting and restoring time-series contents stored in a recording medium. SOLUTION: The method for deleting of data that are present in a first area of a recording medium when the time-series contents are stored in the recording medium, includes following steps of: (a) periodically inserting a time stamp into the contents; (b) generating deletion positional information based on the time stamp, wherein the deletion positional information represents a relative position of the deletion data within the contents; (c) storing the deletion positional information and the deletion data in a second area of the recording medium; and (d) designating the first area as overwritable on the recording medium. Even if the recording medium is reloaded in another disk drive or under another operating system, data deleted from the recording medium can be easily restored. COPYRIGHT: (C)2006,JPO&NCIPI