Original sentence: Because the "rights"—actually, technical capabilities—that a content owner grants are not necessarily the same as the legal rights of a content consumer, DRM critics maintain that the phrase digital rights management" is a misnomer.Digital Rights Management (DRM)#dirigital_restrictions is an umbrella term referring to any of several technical methods used to control or restrict the use of digital media content on electronic devices with such technologies installed.To these critics the term  is a more accurate characterization of the functionality of DRM systems
Edited sentence: Because the "rights"—actually, technical capabilities—that a content owner grants are not necessarily the same as the legal rights of a content consumer, DRM critics maintain that the phrase "digital rights management" is a misnomer.Digital Rights Management (DRM), also called Digital Restrictions Management by its opponents, is an umbrella term referring to any of several technical methods used to control or restrict the use of digital media content on electronic devices with such technologies installed.To these critics the term digital restrictions management is a more accurate characterization of the functionality of DRM systems