At the time of their introduction, Digital Rights Management systems wereoften triumphantly presented as the decisive technological response todigital piracy. However, shortly after their introduction it became clearthat this technological protection presents a rather small, but costlyspeed bump on the digital highway leading to the protected content, andnot a panacea for this undesirable phenomenon. As a result, Digital RightsManagement systems have undergone crucial transformation. With theirfurther development, the Digital Rights Management systems ceased tofocus solely on combating piracy and started to collect vast amounts ofinformation about the users and content usage for various purposes. Thisbook describes the crucial stages of this process, evaluates the extent ofthe threat to the privacy of users' using protected content and assesses both- legality and legitimacy of the current use of Digital Rights Managementsystems. Although this book emphasizes privacy and data protectionlegislation in the European Union and Digital Rights Management systemsusage interrelation, it also offers non-legal insight by adding social andeconomical views on the development in the field.