While the music system is evolving and while majors are abandoning the DRM system which has slowed down the development of the selling of legal music online, more and more signals are making us believe that we are facing a new phase in the use of watermarks.

Watermarking offers copyright protection by letting a company track music that finds its way to illegal peer-to-peer networks. At its most precise, a watermark could encode a unique serial number that a music company could match to the original purchaser.