MAGNETIC DISK MEDIUM AND FIXED MAGNETIC DISK DEVICE

摘要

PROBLEM TO BE SOLVED: To enable incorporating ID information which is hard to alter and has uniqueness is enabled to embed in a magnetic disk medium. SOLUTION: ID information for discriminating the media uniquely is divided into master ID information 3 of a pre-format region of a pre-embossed magnetic disk and media individual ID information 4 of a non-pre-format region, and they are recorded. COPYRIGHT: (C)2004,JPO