Microsoft, Macrovision align on copy protection

By John Borland
http://news.com.com/Microsoft%2C+Macrovision+align+on+copy+protection/2100-1
030_3-5557984.html

Story last modified Mon Jan 31 17:37:00 PST 2005


Microsoft and copy-protection company Macrovision have struck a deal that
will add a new layer of anticopying defenses to video content being swapped
between home devices.

The two companies said that Microsoft had licensed Macrovision's technology,
which aims to stop people from making copies using analog connections
between devices, such as those that typically link a set-top box to a
television.

The deal could make it harder for consumers to make permanent copies of TV
shows and movies without permission, if they use computers running the
Windows operating system. It should also help convince movie studios and
other content producers to release their products in new ways online, the
companies said.

"We think that long term, the studios will offer more interesting products
over the Internet using this technology," said Brad Brunell, Microsoft's
general manager of intellectual-property licensing.

Most copy-protection technologies are aimed at preventing digital
replication, since a digital copy can be identical to the original in every
way. However, modern analog copying can also have high-quality results, and
Hollywood studios have worried that their products could be easily copied
using methods such as recording the output of a DVD player onto a computer
hard drive.

The Macrovision technology has been one attempt to limit this. Rather than
scrambling the signal altogether, as digital copy protection typically does,
it includes a pulse of electronic energy along with the video as it is
played. The pulse is meant to indicate the content should not be recorded.
Many devices such as DVD recorders respect this signal and block recording
if it is detected.

Under the new deal, Microsoft's Windows Media software will recognize this
signal when it is included in incoming analog video streams. For upcoming
versions of its Microsoft's Media Center Edition operating systems, the
computer will allow users to make a temporary copy that can be stored one
day, but that cannot be used after that time.

In future versions of its Media software, including the version in its next
Longhorn operating system, Microsoft plans to support an upcoming revision
of Macrovision's technology that will allow content to be stored for just 90
minutes, or up to a week.

TiVo is also moving to support the new Macrovision technology. Movie studios
have discussed using the more flexible version for different pay-per-view
content rules.


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