Sony BMG's technology partner First 4 Internet, a British company, said Wednesday that it has released a patch to antivirus companies that will eliminate the copy-protection software's ability to hide. In consequence, it will also prevent virus writers from cloaking their work using the copy-protection tools.
[link|http://news.com.com/Sony+to+patch+copy-protected+CD/2100-7355_3-5928608.html?tag=nefd.top|Sony to patch copy-protected CD]
So, how does one "patch" a CD? I was under the impression that this kind of disc was write-once.