An optical information recording medium includes a transparent substrate, a first protection film, a recording film, a second protection film, a dielectric film, and a dielectric reflective film. The first protection film is formed on the transparent substrate. The recording film is formed on the first...http://www.google.com.tw/patents/US5631895?utm_source=gb-gplus-share專利 US5631895 - Optical information recording medium
