Look up: Fansub

1. 
   Fansub
   This is an anime subtitle track produced by fans and added to anime not yet translated into the fansub creators' (also called 'fansubbers') home language. The quality of fansubs can vary depending on the translating ability of the fansubber and also on whether they do a literal translation or their own script. Fansubs used to be distributed on VHS and VCD for the cost of the Cassette or CD. Although unlicensed by the animation studio, fansubs generally escaped prosecution for piracy as many fansubbers translate series unlicensed in their home country and stop distributing their versions when the rights are bought properly. However, this is becoming more difficult to control with the advent of digital media (see 'Digisubs' above), and studios have started to clamp down on fansub groups, particularly those who illegally distribute licensed series and films.
   Found on http://www.animetion.co.uk/glossary.htm
   
   
2. 
   Fansub
   A `fansub` (short for `fan-subtitled`) is a version of a foreign film or foreign television program which has been translated by fans and subtitled into a language other than that of the original. The most common material to be fansubbed into English is Japanese anime, but the phenomenon is much more common in non-English-speaking areas where a wide variety of foreign (especially American) films and TV shows are subtitled and distributed for free...
   Found on http://en.wikipedia.org/wiki/Fansub