Declining music sales threaten the future of the music industry / Poor content and marketing threaten the future of the music industry / Digital music is the future of the music industry / Retail music stores must adapt to the changing music industry / Sound quality of music is at risk in the music industry / CD is obsolete / CD is not obsolete / Vinyl records threaten the future of CDs / Illegal file sharing threatens the future of the music industry / Illegal file sharing enhances the future of music industry