Method and apparatus for manufacturing resin stamper, imprint method, magnetic recording medium, and magnetic recording/reproducing apparatus

A method of manufacturing a resin stamper, comprising the steps of:

• pressing a resin base material against a mother stamper having a pattern formed on the surface thereof to transfer the pattern of the mother stamper to the surface of the base material by compression molding;
• and
• punching the base material,
• wherein the resin base material has a multi-layer structure including at least a front layer and a base layer,
• the front layer is formed of a thermoplastic resin that has a tensile modulus of 1.5 GPa or more at a temperature of 25° C. and a glass transition temperature of 40° C. or more,
• the base layer is formed of a low-elasticity resin that has a tensile modulus of 1.0 GPa or less at a temperature of 25° C., and
• during the compression molding, when the glass transition temperature of the resin forming the front layer is TgA, the front layer is pressed against the mother stamper at a temperature of (TgA−10)° C. or more.