Apparently Sony’s rootkit DRM software contains a statically linked version of the lame mp3 decoder. Lame is licensed under the LGPL license, which would typically only allow this sort of reuse if the application using lame would also be released under LGPL, or Sony bought a non-LGPL license from the authors of lame.
It’s highly unlikely Sony did either.
So here we have a company trying to protect their products from being pirated using pirated software. Oh the irony!
-TPP