Some weeks ago Sony made the attempt to protect the music from some of the cd´s they distribute by adding a rootkit software which would be installed if the user wanted to play the cd on his personal computer. The technique had its flaws and was only working on windows but it still ment that a rootkit was installed on the pc and other scripts could use this rootkit for malicious purposes. After a large outcry from the web community Sony decided to pull the cd´s from the shelves and offer a tool to uninstall the rootkit. (which you would only get through a long process)
