The 3GP (Third Generation Partnership Project) video format is a digital video file format designed for use on 3G mobile devices. The format was developed by a collaboration between various telecommunications companies and standards organizations, including the International Telecommunication Union (ITU) and the European Telecommunications Standards Institute (ETSI). 3GP files are designed to be highly compressed, making them ideal for use on mobile devices with limited storage capacity and bandwidth. The format uses the H.263 or H.264 video codecs to compress video data, and the AMR-NB or AAC audio codecs to compress audio data. In addition to supporting standard video resolutions like 176x144 and 352x288, 3GP also includes support for newer high-definition resolutions like 1280x720 and 1920x1080. 3GP files can be played back on a variety of mobile devices, including smartphones, feature phones, and portable media players. While 3GP files are primarily used for mobile video playback, they can also be played back on desktop computers using compatible media player software. Some media players, such as VLC, can even convert 3GP files to other more widely supported video formats like MP4 or AVI.