The entire experience was frustrating and irritating. Not only had Sony put software on my system that uses techniques commonly used by malware to mask its presence, the software is poorly written and provides no means for uninstall. Worse, most users that stumble across the cloaked files with a RKR scan will cripple their computer if they attempt the obvious step of deleting the cloaked files.

While I believe in the media industry’s right to use copy protection mechanisms to prevent illegal copying, I don’t think that we’ve found the right balance of fair use and copy protection, yet. This is a clear case of Sony taking DRM too far.

Sony has gone very far over the line here. I will happily join in the chorus of people screaming lawsuit. Letting this one go would establish the premise that it's acceptable for the media industry to violate your property in order to protect theirs. That approach can only lead to worse problems.

Mark's Sysinternals Blog: Sony, Rootkits and Digital Rights Management Gone Too Far