Original sentence: CD piracy affects the Mexican music market greatly, to the extent that some music groups and singers announce their latest releases on television along with messages to avoid piracy.Copyright infringement of audio-visual works, often refered to as "piracy", occurs when unauthorized copies are made of music, movies and similar works.Early entertainment piracy surged after the advent of the VHS home video equipment.Illegal copies are unlikely to be found at retail stores; the pirates instead sell copies at on-street markets for as low as one dollar.In the 1990s, music CD's piracy began and became an international problem, especially in Asia and Latin America.In the case of music CD's case, it is much more difficult to catch pirates.Incidence of copyright infringment has grown dramatically since the late 1970s, as technology has facilitated the unauthorized duplication of copyrighted works.Initially, pirates would use hand-held video cameras to surrepticiously record movies shown at theaters.Owners of video stores would purchase the home-made recordings of popular movies and offer them for sale before the film's official release-to-video date.Unauthorized copies of original CD's, DVD's and other media are sold for very low prices around the world
Edited sentence: CD piracy affected the Mexican music market greatly, to the extent that some musical groups and singers would announce their latest releases on television with messages to avoid piracy at the end of the commercials.CD piracy became an international problem, especially in Asia and Latin America.Copies of original CD's, DVD's and other types of software are sold for very low prices around the world.During the 1990s, CD's began to be copied as well.Early entertainment pirates surged after the advent of the VHS home video equipment.In music's case, it is much more difficult to catch pirates: Having learned lessons from their movie counterparts, music pirates are not likely to be found at large store chains, and they sell their products instead on street markets, for as low as one dollar.Owners of video stores would either pay someone at the movie theathers to illegally film movies with a small video camera, or illegally introduce the video cameras to the theater and film the movie, then offer it to clients before the video's actual release date.Since the late 1970s, the entertainment industry has been faced with a worldwide problem, the music and film piracy