Greatest Hits: Back to the Start

Greatest Hits: Back to the Start is the second greatest hits album by Megadeth. It was released on June 28, 2005, via Capitol Records. The title "Back to the Start" is a reference to lyrics in "Rust in Peace... Polaris" from Megadeth's 1990 album Rust in Peace: "The day of final conflict/All pay the price/The third World War rapes peace/Takes life back to the start." The cover art is an edited version of the 1954 Castle Romeo H-bomb test.

Greatest Hits: Back to the Start reached No. 65 on the U.S. Billboard 200, selling 17,441 copies according to Nielsen SoundScan. By December 16, 2005, the album had sold about 133,000 copies in the U.S. The album was also certified gold in Canada on July 15, 2011. On July 23, 2011, in Toronto, Canada, the band was presented with gold plaques by EMI in recognition of the achievement.