OPTICAL STORAGE DISC

摘要

An optical disc (1; 10), suitable for optical registration of information, has a diameter (D) in the range of approximately 5 cm to approximately 8 cm, and has a thickness (H) in the range of approximately 0.1 mm to approximately 0.8 mm. In one embodiment, the disc has a diameter (D) of approximately 5 cm and a thickness (H) of approximately 0.3 mm. In another embodiment, the disc has a diameter (D) of approximately 8 cm and a thickness (H) of approximately 0.8 mm. The disc may have a central hub section (11) having a thickness (H1) approximately equal to 1.2 mm.