Tape rewind sounds come from the mechanical noise of cassette players and VCRs, devices that were common in homes from the 1970s through the 1990s before digital media replaced them. The high-pitched whirr became a familiar shorthand for going back in time in films, television and home videos. Online, creators now use the same effect as a quick audio cue for flashbacks, rewinds and nostalgic edits, especially in short-form video and memes. Its instantly recognisable texture keeps it useful because listeners immediately understand the idea of reversal without any explanation.