Patent ID: 7050368
Filing Date: 2006-05-23
Classification: G11B

Abstract:
1. A duplication management method in duplicating main information to a recording medium having a main information area in which said main information is recorded and a management area in which the management information for each item of said main information recorded in said main information area is recorded, wherein said main information can be duplicated to said recording medium after being received from one of a first route for duplicating said main information without performing duplication number management and a second route for duplicating said main information with duplication number management; the statement of a portion of said management information for said main information duplicated to said recording medium is differentiated based on whether said main information is received and duplicated from said first route or said main information is received and duplicated from said second route; and wherein said portion of said management information is stored and held as duplication hysteresis information at least in case said main information is duplicated to said recording medium after being received via said second route.