1. http://www.sarnoff.com/news/
2. http://www.nikkei.co.jp/news/shakai/20050221AT1G2101521022005.html
(in Japanese)
3. Haitsma, J., Kalker, T.: A Watermarking Scheme for Digital Cenema. In: Proceedings of IEEE International Conference on Image Processing (ICIP), pp. 487–489 (2001)
4. Haitsma, J., Kalker, T.: On Digital Cenema and Watermarking. In: Security and Watermarking of Multimedia Contents, Proceedings of SPIE-IS& T Electronic Imaging, SPIE, vol. 5020, pp. 526–353 (2003)
5. http://www.macrovision.com/