Acronym for Audio Video Interleaved. A Windows multimedia file format for sound and moving pictures that uses the Microsoft RIFF (Resource Interchange File Format) specification.
(abbreviation for Audio-Visual Interleave) File format capable of storing moving images (such as video) with accompanying sound. AVI files can be replayed by any multimedia PC with Windows 3.1 and a soundcard. AVI files are frequently very large (around 50 Mbyte for a five-minute rock video, for example), so they are usually stored on CD-ROM.