That One Night: Live in Buenos Aires is a live album from American heavy metal band Megadeth which was released on CD and DVD formats. It features a live concert recorded in Buenos Aires on October 9, 2005 at the Obras Sanitarias Stadium. The performance is segued by cuts of Dave and Glen performing a few acoustic songs for some fans on the lawn outside of the band's hotel. It was at this concert that Dave Mustaine announced that Megadeth would continue on past the 2005 tour. An iTunes version of the album is now available as well. This version included three more songs not featured in the DVD ("Skin O' My Teeth", "Die Dead Enough" and "Angry Again"). There are also four currently unreleased songs from the performance, missing from either the CD or DVD version: ("The Scorpion", "Train of Consequences", "Of Mice and Men" and "Sweating Bullets"). The 2 CD version was released on September 4, 2007. It was originally intended to be released at the same time as the DVD. It was certified gold in the US for a shipping of 50,000 units. This is the only release by Megadeth to feature bassist James MacDonough.