The warning comes from Sega CD discs from the early 1990s, when the add-on for the Genesis and Mega Drive played games from CD-ROM. Because players would also accept ordinary audio CDs, Sega included a spoken track to stop people playing the data portion in a stereo. The message circulated later through retro gaming videos, emulation forums and nostalgia posts, where the formal wording became a recognizable joke. It remains popular as an instant signal of old hardware, forbidden media and the early CD gaming era.