First 4 Internet
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First 4 Internet is a British company that develops copy prevention software used on compact discs, for protecting pre release music CDs prior to commercial release in an attempt to prevent music piracy in the early stages. The technology includes audio watermarking to create "double dip" copy control.
First 4 Internet also creates image composition analysis software that is claimed to be able to detect pornographic images for the purpose of Web or e-mail filtering.
First 4 Internet were the creators of the controversial Extended Copy Protection (XCP) copy protection system adopted by Sony, which led to the 2005 Sony BMG CD copy protection scandal. Despite this scandal, technology produced by First 4 Internet continues to be used by major record labels.