Copyright management method and copyright management system for digital music

摘要

A method is described for managing rights for digital music, including registering music players, from among a plurality of music players, with digital archives that store songs, from among a plurality of digital archives, wherein songs can be copied from digital archives to music players, and from music players to digital archives, permitting a music player to copy a song from a digital archive for which it is registered, permitting a digital archive to copy a song from a music player that is registered with the digital archive, restricting a music player from copying a song from a digital archive for which it is not registered, and restricting a digital archive from copying a song from a music player that is not registered with the digital archive. A system and a computer-readable storage medium are also described.