Her debut audio CD Libera Me was released in 1999. Other CD releases include Ascolta (2000), and New Dawn (2002).
A CD compilation titled Izzy (2003), that included a duet of "The Prayer," with American tenor Daniel Rodriguez, was released in the US, the CD also included a multimedia track of "My Love Is Like a Red Red Rose".
Two of her CDs reached the No. 1 position in the UK's Classic FM classical music chart. In 2000, she was nominated for a Classic Brit Award as "Female Artist of the Year".
The song "Wish" was performed by Cooper for the game Rygar: The Legendary Adventure in 2002. The soundtrack for the game includes the song but it was only released in Japan that same year.[1][2]