British music giant EMI Group, home of The Rolling Stones and Coldplay, has been talking with online retailers about possibly selling its entire digital music catalogue in MP3 format without copy protection, it is reported today.

Yoko Ono is suing music company EMI Group and a subsidiary for £5.6m (€4.46m), claiming she was cheated out of royalties due from the sale of music recordings by her late husband, former Beatle John Lennon.