The Society of Music Creators, Composers and Publishers, or Sacem, a French association representing recorded music rights holders, is threatening to take Apple to court in a dispute over unpaid music royalties. The argument centers on a fee levied in France on sales of blank CDs, tapes, hard disks and other hardware that can be used to copy music. The group accuses Apple of consistently refusing to pay the levy on sales of its iPod (which, of course, contains a hard drive). Sacem said in a statement that unless Apple settles its account, the agency that collects the payments “will have no other option than to go immediately to court to make sure that the rights of artists, composers and producers are respected.”