DRM is Digital Rights Management (DRM); in basic terms, it's the ability to brand your digital media, either music or video, with attributes that ensure copy protection in the way in which your media is played back.
DRM is used to protect Legal music downloads to stop people to share them. It forces people to play purchased music only on DRM capable personal MP3 player, but if you would like to play your DRM music on other players, you have to burn the music on CD and then rip theme from CD. However, this way is not ecumenical at all. You need too many discs if you need to burn 1000 music files.
With the stunning global success of Apple's iPod music player and iTunes online music store, some have called for Apple to "open" the digital rights management (DRM) system that Apple uses to protect its music against theft, so that music purchased from iTunes can be played on digital devices purchased from other companies, and protected music purchased from other online music stores can play on iPods. Steve Jobs argues that people should persuade the music companies to sell their music DRM-free not Apple. Then what shall we do except embracing this wholeheartedly.
