Fansubbing involves fans translating and subtitling foreign television shows and movies without official permission. While illegal under international copyright law, fansubbers argue it helps promote shows and can influence licensing. Some video streaming sites hosted fansubs, but later sites like Crunchyroll obtained licenses after raising funds. There is debate around the ethics of fansubbing licensed content or profiting from the work of others. Fansubbers also face challenges in how to respond when other groups distribute their subtitles without permission.