In an optical disk, a display area is formed between the circumference of a recorded area and the circumference of the maximum area to which a recorded area can be provided. A reflective layer is formed covering the recorded area 3 and covering the display area forming a transparent display area at least...http://www.google.de/patents/US5982737?utm_source=gb-gplus-sharePatent US5982737 - Optical disk having first design visible from one side of the disk and a second design visible from the other side of the disk
