Decades before the video revolution of the late 1970s/early 1980s, there was a small but devoted market for home films in the 16 mm, 9,5 mm, 8 mm, and Super 8 mm film market. Because most individuals in the United States owning projectors did not have one equipped with sound, vintage silent films were particularly well-suited for the market. A number of feature films were released in full-length versions by companies such as Blackhawk from the 1960s until the market essentially evaporated in the early 1980s with the advent of home video that made collecting "films" considerably cheaper. The silent feature films were released on multi film reels, each holding approximately 20 minutes of film, and were often expensive for the era, a feature-length Super 8 mm silent film might cost over $100