effectstitle.jpg (29224 bytes)


The Effect on Consumers

Copy protection encourages people to continue to strive to make new and better creative products. Consumer choice determines which creative products succeed and which fail.

However, if the industry cannot protect its copyrighted material, the creative community will have less incentive to produce and distribute more motion pictures and television shows. As a graphic example of the impact of the DeCSS hack, the rollout of DVD audio – which was to have relied on the CSS system -- was indefinitely postponed because of the proliferation of DeCSS, depriving consumers of the choice of this new higher quality audio format.


Delay of DVD Audio system

Upon learning that the Content Scrambling System of DVD video players was hacked,  Matsushita Electric Industrial Co. and JVC abruptly canceled their planned pre-Christmas launch of new DVD-Audio players. The DVD-Audio launch could be postponed by "about six months," said a Matsushita spokesman. This is the first time that a consumer electronics company's business plan has been altered by a breach of copy protection codes. But it foreshadows proliferation of such problems, as more consumer devices go digital and consumer electronics manufacturers are held responsible for content security.   Although DVD  audio players are designed to use CSS2, which is a different copy protection scheme from CSS, it is believed to share some core scrambling technologies of CSS.  Now they are looking for a new system of encryption.


New Encryption Software

Matsushita's Nagasaki disclosed the company's plan to use a new copy protection system — developed by Matsushita, Toshiba, IBM and Intel — for a range of recording media including the Secure Digital (SD) memory card, DVD-Video and DVD-Audio. The foursome will roll out two approaches based on a common underlying encryption technology called C2: Content Protection for Recordable Media (CPRM) and Content Protection for Prerecorded Media (CPPM).

CPRM is designed for use in SD memory cards and recordable DVD-Video systems, while CPPM is being proposed to the music industry as a copy protection system for DVD-Audio players, said Koji Hase, vice president at Toshiba Corp.'s strategic partnership and licensing division.

Both CPPM and CPRM are said to be more robust than CSS. It has been said that unlike CSS, the new encryption system is capable of generating an "almost unlimited number of keys," making it much easier to revoke a key quickly.