- "Inventor of the Week Archive: The Digital Compact Disc". Massachusetts Institute of Technology. December, 1999. 喺2007-07-13搵到. 檢查日期值喺:
- Brier Dudley (November 29, 2004). "Scientist's invention was let go for a song". The Seattle Times. 喺2007-07-13搵到.
- "David Gregg and the Optical Disk". About.com. 喺2007-07-13搵到.