An optical record carrier with a substrate (1) having thereon a stack (3) of a reflection layer (4), an interference layer (5) and a phase-change recording-layer (6) in that order, the incident radiation being first incident on the reflection layer. Due to this structure of the stack a high contrast...http://www.google.de/patents/US5419937?utm_source=gb-gplus-sharePatent US5419937 - Optical record carrier
