AVI, Microsoft Audio/Visual Interleaved (.avi)

The AVI Video file format

AVI files have become ubiquitous as one ofe the leading audio and video files by now. AVI stands for Audio Video Interleave and was developed by Microsoft in 1992. Files with this extension can be played by various video players. AVI files allow simultaneous audio with video playback because they contain audio and video information in a single file. Due to its easy architecture, AVI files can be played on different operating systems like Windows, Unix, Mac and Linux and are even supported by almost every browser.

Technical details of AVI files

AVI has been acquired from the Resource Interchange File Format (RIFF). This file format divides the file data into chunks and each chunk then gets recognized by a FourCC tag. In an RIFF file, an AVI file takes up the form of one individual chunk and is further subdivided into one optional chunk and two mandatory chunks. The first sub chunk is recognized by the hdrl tag and is the file header which contains metadata about the video. The second is identified by the movi tag and contains actual audio/visual data that makes up the AVI movie. Created by Microsoft, the video container or wrapper format stores video data that can be encoded in a variety of codecs and uses less compression than other formats like MOV and MPEG.

More information about the AVI file format

File extension .avi
File category Video
Example file Download example_2s.avi file (753.58 KiB)
Download example.avi file (12.6 MiB)
Download example_small.avi file (2.1 MiB)
Associated programs Video Lan VLC Player
Microsoft Windows Media Player
Apple Quick Time Player
DIVX Player
Useful links Learn more about the AVI file
File conversion Convert a file to AVI
Developer Microsoft