Master recording apparatus, master recording method, master for stamper containing heat-sensitive resist material, and method of forming film of heat-sensitive

A master recording method of recording information on an optical master disc comprising a heat-sensitive resist film, wherein the resist film consists of a Bi oxide and a complex compound comprising the Bi oxide, the master recording method comprising:

• forming a recording mark corresponding to two cycles of a fundamental clock frequency by heating with one-time irradiation of light wherein one cycle of the fundamental clock frequency is determined as “1”.

An optical master disc for creating a stamper used in manufacturing an optical disc comprising:

• a substrate comprising either glass or metal;
• and
• a resist film comprising at least one of a Bi oxide and a complex compound comprising a Bi oxide with a predetermined thickness on the substrate.

A method of creating an optical master disc used for creating a stamper used in manufacturing an optical disc, comprising:

• simultaneously sputtering a Bi oxide and a complex compound comprising the Bi oxide with respect to a substrate;
• and
• quenching the Bi oxide into an amorphous shape.