Master carrier for magnetic transfer

摘要

A master carrier (3) for magnetic transfer is equipped with a substrate having a land/groove pattern. The land/groove pattern is formed from a magnetic material (32) and corresponds to information that is transferred to a magnetic recording disk (2). Each land (32a) in the land/groove pattern has four round corners whose radius (R) is from 1% through 47% of the width of a data track on the disk.