AVI or Audio Video Interleave remains one of the most common formats for digital video today. Introduced by Microsoft in 1992, this format came packaged with Windows computers. Since Windows is still the most widely-used computer system, it is easy to see why many digital videos are in this format. AVI allows both audio and video data to steam at the same time.
The AVI format can be a challenge to some video editors. Compared to the MPEG format, AVI takes up a bigger file size than necessary. It also does not contain information on pixel aspect ratio. This is a reason why most AVI files suffer in quality because the AVI format makes all pixels square by default. Other video formats like MPEG allow irregular shaped pixels, providing a sharper, cleaner picture.
The AVI format remains popular amongst amateur video editors because of its compatibility with many video players on the market, however advanced video editors may want to look into more sophisticated video formats.
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