The sound comes from Sony's original PlayStation, first released in Japan in 1994 and then in North America and Europe in 1995. It played every time the console was switched on, just before the game loaded, so it became inseparable from the experience of playing early 3D titles such as Crash Bandicoot and Final Fantasy VII. As those players grew up, clips of the boot sequence spread through YouTube compilations, reaction videos and retro gaming channels, turning the short chime into a widely recognised shorthand for 1990s gaming nostalgia.