This has been floating around the Internet for years, but running across it again recently I was reminded of just how brilliantly bad it is: "Don't Copy That Floppy," a painfully unhip early '90s anti-piracy video. If you want more information, there's a Wikipedia entry about the video—which is careful to point out that it reveals essential details of the plot, as if anyone is going to have their enjoyment ruined by discovering too early that after hearing what MC Double Def DP has to say, the kids reject temptation and decide to keep their floppy uncopied.