This might be old news to most, but it was posted yesterday and it is rather
interesting.
Title: Hidden Feature in Sony DRM Uses Open Source Code to Add Apple DRM
URL: http://www.freedom-to-tinker.com/?p=940
<quote>
or weeks, the blogosphere has been abuzz with tales of intrigue about
Sony?s XCP copy protection system. Among the strangest revelations was that
XCP itself infringes on the copyrights to several open source software
projects. In one case, Sam Hocevar found conclusive evidence that part of
XCP?s code was copied from a program called DRMS, which he co-authored with
DVD Jon and released under the terms of the GPL open source license. What
made this finding particularly curious is that the purpose of DRMS is to
break the copy protection on songs sold in Apple?s iTunes Music Store. Why
would XCP rip off code intended to defeat another vendor?s DRM?
</quote>
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