The document discusses digital rights management (DRM) technology, which focuses on preventing illegal distribution of paid digital content like music and videos. DRM uses encryption and authorization checks to control access to and copying of copyrighted works. While DRM aims to curb piracy, some argue it restricts lawful usage and that removing restrictions could increase music sales. The recording industry uses DRM and prosecutes illegal downloaders, but supporters of removing DRM say it would encourage more legal purchases if content was less restricted. Apple would sell DRM-free music if allowed by content owners, but current agreements require DRM encoding.