Sony/BMG

Recently Sony/BMG incorporated a Digital Rights Managment system on some of its CD's to prevent the purchaser from copying the CD's. This created a problem when viruses and trojans were using the software as a disguise to infect people's computers. The DRM comes with a "rootkit" which is a cloaking device that allows hackers hide harmful files on your computer.

Multiple lawsuits have been filed in Europe and the States against Sony by people who's computers have been infected because the rootkit that came with a CD made their computers vulnerable. http://www.out-law.com/page-6332

Here is an article about what the End-User License Agreement, that comes with these CD's says. Keep in mind that the agreement is 3,000 words long and is agreed to by the consumer if they don't return the CD upon reading the agreemnt. http://www.eff.org/deeplinks/archives/004145.php
I'm not sure if this would hold up in court on an unconscionable charge, but its disturbing none the less.

The point of all this is don't buy Sony CD's. There is a list out there of what CD's contain this technology. The list isn't long maybe 20 CD's but i wouldn't buy anything from Sony or its sublabels.