The format Digital Video (DV) is a video standard of domestic, industrial and broadcast range. It is based on the DCT algorithm and protocol used as data transmission or IEEE 1394 Firewire. Usually written to tape a quarter inch (with three variants: Mini, M and L). It was created in 1996 as an international standard in accordance with IEC 61834 standard, which defines the codec and the tape type. It was developed as a digital video format for an industrial setting, but excellent value meant that it has become the dominant home video format such as Mini-DV, and encountered professionals, DVCAM and DVCPRO versions. One type DV50 format, Digital-S, based on this standard but recorded in half-inch tape. Its popularity has caused it to be commercial basis even for an inexpensive high-definition format, HDV, only share the tape type.
Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player version 6 and newer. Flash Video content may also be embedded within SWF files. There are two different video file formats known as Flash Video: FLV and F4V. The audio and video data within FLV files are encoded in the same manner as they are within SWF files. The F4V file format is based on the ISO base media file format and is starting with Flash Player 9 update 3. Both formats are supported in Adobe Flash Player and developed by Adobe Systems. FLV was originally developed by Macromedia. Flash Video is the de facto standard for web-based streaming video (over RTMP). Notable users of it include YouTube, Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers.