Deaths Hand writes "According to this Dutch article the Sony DRM software (or rootkit, if you may prefer) contains code from the LAME MP3 encoder project, which is licensed under the LGPL. However, the source code has not also been distrbuted, hence breaching the license. Here is an english translation of the page."
So apparently Sony violates your privacy to create a backdoor onto your machine using code that violates an Open Source license. This story just keeps getting stranger.