mm Video8 format in 1985. That year, Panasonic, RCA and Hitachi began producing camcorders using a full-size VHS cassette with a three-hour capacity. These shoulder-mount camcorders were used by videophiles, industrial videographers and college TV studios. Full-size Super-VHS (S-VHS) camcorders were released in 1987, providing an inexpensive way to collect news segments or other videographies. Sony upgraded Video8, releasing the Hi8 in competition with S-VHS. Digital technology emerged with the Sony D1, a device which recorded uncompressed data and required a large amount of bandwidth for its time. In 1992 Ampex introduced DCT, the first digital video format with data compression using the discrete cosine transform algorithm present in most commercial digital video formats. In 1995 Sony, JVC, Panasonic and other video-camera manufacturers launched DV, which became a de facto standard for home video production, independent filmmaking and citizen journalism. That year, Ikegami introduced Editcam (the first tapeless video recording system). Camcorders using DVD media were popular at the turn of the 21st century due to the convenience of being able to drop a disc into the family DVD player; however, DVD capability, due to the limitations of the format, is largely limited to consumer-level equipment targeted at people who are not likely to spend any great amount of effort video editing their video footage. High definition (HD) The Sony HDVS system, launched in 1984, allowed 1080i recording in the early 1990s. Panasonic launched DVCPRO HD in 2000, expanding the DV codec to support high definition (HD). The format was intended for professional camcorders, and used full-size DVCPRO cassettes. In 2003 Sony, JVC, Canon and Sharp introduced HDV as the first affordable HD video format, due to its use of inexpensive MiniDV cassettes. Tapeless Sony introduced the XDCAM tapeless video format in 2003, introducing the Professional Disc (PFD). Panasonic followed in 2004 with its P2 solid state memory cards as a recording medium for DVCPRO-HD video. In 2006 Panasonic and Sony introduced AVCHD as an inexpensive, tapeless, high-definition video format. AVCHD camcorders are produced by Sony, Panasonic, Canon, JVC and Hitachi. About this time, some consumer grade camcorders with hard disk and/or memory card recording used MOD and TOD file formats, accessible by USB from a PC. 3D In 2010, after the success of James Cameron's 2009 3D film Avatar, full 1080p HD 3D camcorders entered the market. With the proliferation of file-based digital formats, the relationship between recording media