Okay little buddy, so back in the day, people used to have these things called "floppy disks". They were basically like CDs but smaller and not as good.
Sometimes, people would make copies of these floppy disks and share them with their friends. This was kind of like sharing toys or candy with your friends.
But then, some people who made these floppy disks got kind of mad because they weren't making as much money as they could be. They wanted people to buy their floppy disks instead of copying them.
So they made a video called "Don't Copy That Floppy" to try and convince people not to copy their floppy disks. The video basically said that copying the floppy disks was illegal and bad, and that it could hurt the people who made them.
So, the lesson is: if you have a floppy disk (which you probably don't), you shouldn't copy it because it's illegal and not nice to the people who made it.