Multi-information-layer recording medium and manufacturing process

A multi-information-layer recording medium manufacturing process comprising steps of:

• molding a plastic substrate having physical patterns on a surface by an injection method;
• depositing a first information layer on the substrate;
• superposing a flexible sheet stamper on the first information layer with a liquid ultraviolet curable resin layer sandwiched therebetween, the flexible sheet stamper having a thickness of not less than 0.085 mm and not more than 0.27 mm, a translucency, and physical patterns formed on its lower surface;
• spinning the substrate with the ultraviolet curable resin layer sandwiched between the stamper and the substrate so as to adjust a thickness of the ultraviolet curable resin layer;
• irradiating the ultraviolet curable resin layer with ultraviolet light through the stamper so as to cure the ultraviolet curable resin layer;
• separating the stamper;
• and
• depositing an information layer on a translucency spacer formed of the cured ultraviolet curable resin layer,
• wherein the step of depositing an information layer on the translucency spacer is repeated to form a plurality of information layers separated from one another by the translucency spacer.