The lack of digital rights management has been the chief stumbling block for open standards and the companies whose products support MPEG-4, including Apple. Paramount to content providers is the ability to protect material from piracy and build a business model around new forms of distribution. And while the industry's tendency is to lean toward support for open standards, illustrated in digital TV's endorsement of MPEG-2, without viable ways to protect content and deliver profits, content owners like on-demand movie rental site Movielink have chosen to work with Microsoft and RealNetworks for their digital-rights management technology. ISMA's technical spec for rights protection would provide keys to the answer. A technical standard for digital rights management "had been the component missing from any MPEG-4 content or individual players", said Ryan Jones, an analyst for The Yankee Group. "The ISMA has been guilty of wandering about because of so many important players with pretty different goals. But having a road map is definitely important, and content security is and should be on the top of the list," Jones said. Microsoft and RealNetworks have gathered support because they have mature products, which consumer-electronics manufacturers are looking for, along with the digital-rights management tools that content owners demand, Jones said. But, he said, Microsoft is notorious for products that are not compatible with earlier versions of software. "These application developers are stuck with two pressures: Consumer-electronics manufacturers want format performance and don't care about content security, and on the other end, the content owners want continually improved tools, with rights management," Jones said. Jones added: "The MPEG-4 companies recognise that this space is changing all the time and it's typical of their perspective to get it right. Is it too long? Not if they get the product right. Companies will wait." Tom Jacobs, president of ISMA, said the group has formed a content advisory board to develop the digital rights spec with input from chief technical officers from a number of content companies. The ISMA spec is based on MPEG-4 IPMP (intellectual property management protections). "We are specifying how you implement interoperable protection measures based on that standard, and that that protection scheme works both for streaming and for download," Jacobs said. ISMA launched in late 2000 in an effort to accelerate the market adoption of open standards for streaming rich media over Internet Protocol. Last year, ISMA released its v 1.0 specification, which defines an end-to-end implementation agreement for streaming ISO-compliant MPEG-4 video and audio over IP. The group signed on last week four new members, Coding Technologies, ContentGuard, Nextreaming and VBrick Systems.
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