Optical recording

The history of optical recording can be divided into a few number of distinct major contributions. The pioneers of optical recording worked mostly independently, and their solutions to the many technical challenges have very distinctive features, such as

• reflective disc (Compaan and Kramer)
• transparent disc (Gregg)
• floppy disc (Russell)
• rigid disc (Compaan and Kramer)
• focused laser beam for read-out through transparent substrate (Compaan and Kramer).