What is AVI

Audio Video Interleave, known by its acronym AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows technology. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback. Like the DVD video format, AVI files support multiple streaming audio and video, although these features are seldom used. Most AVI files also use the file format extensions developed by the Matrox OpenDML group in February 1996. These files are supported by Microsoft, and are unofficially called "AVI 2.0".

Since its introduction in the early 90s, new computer video techniques have been introduced which the original AVI specification did not anticipate.

1. AVI does not provide a standardised way to encode aspect ratio information, with the result that players cannot select the right one automatically (though it may be possible to do so manually).

2. AVI is not intended to contain variable frame rate material. Workarounds for this limitation increase overhead dramatically.

3. AVI was not intended to contain video using any compression technique which requires access to future video frame data beyond the current frame. Approaches exist to support modern video compression techniques (MPEG-4, et al) which rely on this functionality, although this is beyond the intent of the original specification and may cause problems with playback software which does not anticipate this use.

4. AVI cannot contain some specific types of VBR data (such as MP3 audio at sample rates below 32KHz) reliably.

5. Overhead for AVI files at the resolutions and frame rates normally used to encode feature films is about 5MB per hour of video, the significance of which varies with the application.

Guides: How to Get AVI Video

Step 1: Download and launch DVD & Video to AVI Converter

Step 2: Add video file(s) that you want to convert to AVI.

Step 3: Set "AVI - Audio-Video Interleaved(*.avi)" as the output formats and specify the path.

Step 4: Click "Start" button to begin conversion, then done!

That's it! Easy enough! Just only need four steps, you could get your AVI video!

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