News that Vivendi's Universal Music Group has refused to renew its contract with iTunes on the same terms as the last time around has spawned predictions that the online music industry may be in for a big change. Universal reportedly has requested a month-to-month arrangement with iTunes to distribute its music; the label owns the rights to music from such popular artists as U2, Eminem and Sting.

Analyst: Universal Deal Could Create iTunes 'Nightmare Scenario'