Optical recording medium and recording system

摘要

PCT No. PCT/JP93/00782 Sec. 371 Date Nov. 8, 1995 Sec. 102(e) Date Nov. 8, 1995 PCT Filed Jun. 11, 1993 PCT Pub. No. WO94/29856 PCT Pub. Date Dec. 22, 1994An optical disc is constructed for operation in an alloying mode and includes first recording sublayer of Ge-Sb-Te and a second recording sublayer of Bi-Te. Apparatus is provided for recording information on an optical disc in the alloying mode or phase transformation mode in accordance with disc type information associated with the disc and readably by the apparatus. There is also provided an environmental aging technique for use in constructing optical discs to obviate significant dimensional changes in the discs during use between the extremes of the operating environment. There is further provided an optical disc construction and method in which an inorganic dielectric deposited on an organic substrate includes a hydrocarbon. There is additionally provided an optical disc construction and method in which a plasma polymer layer is disposed between an inorganic dielectric layer over the recording layer and a resin layer.