Patent ID: 6189014
Filing Date: 2001-02-13
Classification: G06F,G11B

Abstract:
A method of managing files on an interchangeable storage medium comprising the steps of:inputting a request for converting an optical storage medium having a RAM area originally serving as a RAM section and a ROM area originally serving as a ROM section into a storage medium having a mixed RAM-ROM section in which the RAM area and ROM area are mixed, each original section having a file management area for storing file management information and a file area for storing files;reading file management information out of a file management area of the original ROM section in response to said request;converting the file management information of the original ROM section to mixed RAM-ROM section file management information by making cluster numbers contained in the file management information of the original ROM section into cluster numbers of the mixed RAM-ROM section;storing the mixed RAM-ROM section file management information in a mixed RAM-ROM section file management area;storing file management information of the RAM section in the mixed RAM-ROM section file management area as the mixed RAM-ROM section file management information; andmanaging ROM files and RAM files as files of the mixed RAM-ROM section based upon the mixed RAM-ROM section file management information.