Back in the olden days when people wanted to listen to music, they used cassette tapes. These were like small boxes with a long piece of tape inside that had music recorded on it. People would put the cassette tape into a special machine called a cassette player and press a button to make the music play.
Sometimes, people would make copies of these cassette tapes for their friends. This was okay as long as they were just copying the tapes for their own personal use. But then some people started copying the tapes and selling them to other people. This was not okay because it meant that the people who made the music didn't get paid for their hard work.
So, a big scandal happened when some famous musicians found out that their music was being copied and sold without their permission. They started getting angry and suing the people who were doing this. This scandal was called the cassette scandal because it was all about copying music onto cassette tapes and selling them without permission.
People learned that it's not okay to copy and sell other people's music without permission. Today, we have different ways to listen to music like streaming services and digital downloads. And most of the time, we have to pay a little bit of money to listen to the music we like so that the people who made it can get paid for their hard work.