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Technologists Claim KaZaA Can Filter Copyrighted Works

Postby help1 » Fri Dec 03, 2004 10:53 am

Technologists Claim KaZaA Can Filter Copyrighted Works
January 15, 2004
By DRM Watch Staff



A group of technology experts, acting at the behest of porn publisher Titan Media, issued a statement to U.S. Congress on Tuesday expressing the opinion that P2P software provider Sharman Networks has the ability to prevent copyrighted material from being sent around its KaZaA network. This statement was part of Titan's efforts to get its copyrighted video clips removed from the network.

The experts' claims center on technology for detecting copyrighted works through "fingerprinting" (sometimes also called "hashing") technology that identifies songs by analyzing the content itself. Such technology, which is provided by several firms including Audible Magic, GraceNote, and MediaGuide, could be used to search the network for identifiable files, which the KaZaA software would then "filter" by removing them from the appropriate host computer through the "spyware" that it installs on all nodes in the network.

Fingerprint-based technology for identifying works depend on the existence of a database of known works and their fingerprints; a work can only be detectable if the fingerprinting technology vendor has computed the work's fingerprint and put it in its database. A potential problem with this scheme is that there are likely to be hundreds of thousands of songs that are copyrighted yet not in a given fingerprint database. It would theoretically be possible to make fingerprinting an adjunct to copyright registration, which is not strictly necessary under U.S. law but is a prerequisite to filing infringement charges.

The ability to control the usage of copyrighted material on the network is central to any charges of so-called vicarious copyright infringement -- that is, having the ability to control usage but choosing not to do so for one's own gain. Napster was found guilty of this charge in 2001 because it had a central repository of works available on the network, while the newer P2P networks do not. At a trial last year in which two other P2P networks, Morpheus and Grokster, were acquitted of infringement charges, expert testimony about how such content filtering could work did not hold up under scrutiny.

Yet the charge of vicarious infringement is, of course, not the end game for the content industries when going after KaZaA and other P2P networks. They are saying that these networks are fine as long as they only host material that is either not copyrighted or that the owners explicitly wish to make available on the networks. To them, the outcome of forcing P2P software developers to incorporate filtering technology is the next best thing to a judge's shutdown order, a la Napster.

A better outcome, as we have been saying, is for P2P software developers to soften their ideological stances enough to integrate mechanisms that protect the content of and compensate those rightsholders who wish to be involved in that manner, while providing reasonable usage experiences for consumers. Easier said than done, but not impossible.




ps what you guy think :D
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Postby Bunny101 » Fri Dec 03, 2004 11:17 am

I like the idea cuzz then kazaa will be bankrupted and no more n00bs will be tricked
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Postby Prelude76 » Fri Dec 03, 2004 11:42 am

how can they filter out copyrighted files when they can't even filter out fakes?
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Postby AussieMatt » Fri Dec 03, 2004 11:52 am

How can they use digital fingerprinting when Kazza uses a partial hashing scheme this is how they can get fakes on the network.your right they cant tell the difference between fakes or real files and the current methods used are by blind keyword search look at the Kazaa case in Australia and you will see how Media Sentry looks for files.
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