Medium für optische Datenspeicherung sowie dessen Herstellungsverfahren, und Aufzeichnungs- sowie Reproduktionsverfahren unter Benutzung dieses Mediums

摘要

An optical information recording medium of the present invention includes at least one information layer (12). The information layer (12) includes a first protective film (14), a first interface film (15), a recording film (16) having the optical characteristics that are changed reversibly by laser beam irradiation, a second interface film (17), a second protective film (18), and a reflective film (19), present in the indicated order from the laser beam incident side. The first interface film (15) includes an oxide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si. The second interface film (17) includes carbon or a carbide of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Si.