SmartRM is a simple system that helps you make sure people will only use your work in the way you intend. It works in a similar way to software known as digital rights management (DRM), enterprise rights management (ERM) or information rights management (IRM) systems. It supports sharing by making sure that important files you send to people wonâ??t get into the wrong hands. Files that you protect using SmartRM are encrypted and enclosed in the MPEG-21 file format. MPEG-21 allows you as the owner of a file to decide who can use the file, and in what way.