Build your Rock Band 3 library by purchasing this song game track: "Don't Know What You Got (Til It's Gone)"-- Cinderella. PLEASE NOTE: Rock Band 3 game disc is required to play song game tracks. Many Rock Band 3 song game tracks are available as both a multipack and as a single game track. These song game tracks are exactly the same (unless expressly noted as a special version or remix). Be aware that it is possible to download the same song game track twice so please carefully consider your purchases. For music credits, visit www.RockBand.com.