In its most general form, a playlist is simply a list of songs, but sometimes a loop. They can be played in sequential or shuffled order. The term has several specialized meanings in the realms of radio broadcasting and personal computers. A playlist can also be a list of recorded titles on a digital video disk. On the Internet, a playlist can be a list of chapters in a movie serial; for example, Flash Gordon in the Planet Mongo is available on YouTube as a playlist of thirteen consecutive video segments.