A seventh generation console released in 2006, the Sony PlayStation 3 distinguishes itself from its predecessors with its online gaming service, the PlayStation Network, and its ability to play high definition Blu-ray Discs as well as standard DVDs. The PS3 initially received mediocre reviews based on its extremely high selling price of $499 and lackluster launch games, but the triumph of Blu-ray over HD DVD and an improved gaming line-up quickly boosted sales. By October 2009, over 27 million units were sold.