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LATEST ADDITIONS

ContentGuard Wins Patent

A "digital rights management" (DRM) company has been awarded a patent for its "tickets" to Internet-based entertainment. Bethesda, MD&ndash;based <A HREF="http://www.contentguard.com">ContentGuard Holdings, Inc.</A> announced July 27 that it has been granted a patent for its "digital ticket" system, which allows users access to digital entertainment&mdash;music, video, graphics, and e-books&mdash;from any Internet-connected device.

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Watermark Patent Awarded

There appears to be nothing more important to the music business today than controlling the distribution and use of digital content on the web and in the home. Proprietary schemes to prevent or control the use of audio files have become hot commodities and valuable assets for many companies. <A HREF="http://www.liquidaudio.com">Liquid Audio</A> recently announced that the US Patent Office has awarded the company a patent (#6,219,634) for its watermark technique used for distributing secure digital music files.

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Copy-Protecting CDs Begins

In what is intended to have the biggest impact yet on the thriving "rip, mix, burn" lifestyle, <A HREF="http://www.macrovision.com">Macrovision</A&gt; has revealed that several record labels have been secretly putting its copy protection system onto new CD releases since around March of this year (see <A HREF="http://www.stereophile.com/news/10985/">previous report</A>). The process, called SafeAudio, is a Macrovision registered trademark and is intended to prevent the copying of CDs, or tracks from CDs, onto CD-R discs and computer hard drives. The technology was developed jointly by Macrovision and <A HREF="http://www.ttrtech.com">TTR Technologies</A>.

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