Making changes to an existing media work. Responsible for many kinds of Derivative Works
- Making a meaningfully new work using pieces of an old one.
- Comes from mixing the individual tracks of a musical recording together again in a new way, such as to make a dance mix of a pop song.
- Types include Fan Vid, Machinima, Remix Comic, and, less seriously, Youtube Poop.
- Replacing the subtitles on a video.
- Types include Fan Sub and Gag Sub.