LaserDisc was the first commercial optical disc format for home movies, launched in 1978, and Pioneer became its best known hardware maker throughout the 1980s and 1990s. Its players produced a recognisable electronic startup sequence as the large disc loaded and spun up. While DVDs replaced the format, recordings of that sound have circulated online among collectors and retro tech fans. It remains popular in edits celebrating physical media, where the startup chime instantly marks a film or clip as coming from an earlier, pre-streaming era.