http://www.xfutureblog.com/2007/09/27/how-to-reduce-or-compress-avi-file-size-and-upload-to-YouTube/
Some ways to reduce the size of AVI files is: 1. Reduce the resolution. 2. Reduce the frame rate. 3. Increase the key frame rate. 4. Change the compressor. However You may lose some quality when trying to reduce file size.
Rename the file and just put .AVI at the end of the file name where the vep file name used to be.
File compression
avi to mvi
AVI
NO, corby 2 does not support avi file format
File Compression
It is called Compress.
H264 and AVI are two different concepts entirely, and thus can not be compared to each other. AVI is a "container", which describes only how to lay out the contents of the file, while H264 is a "codec", which describes how the video is compressed and decompressed. You could consider AVI to be a shipping container, and H264 the contents of the shipping container. Other containers include FLV and MKV. Other codecs include FFV1, H261, H262, H263, MPEG4, MJPEG, and WMV. Check Wikipedia for a comparison of common codecs. It should be noted that a file size comparison is a poor way of determining algorithm efficiency. Many codecs can be configured to provide lower quality (up to completely unwatchable) to reduce file size; to compare them fairly, make sure you're comparing each codec at the same resolution and quality.
Audio Video Interleave (AVI) is a special case of Resource Interchange File Format (RIFF). AVI is defined by Microsoft. The .avi file format is the most common format for audio and video data on a computer. Audio content or video content that is compressed with a wide variety of codecs can be stored in an .avi file and played in Windows Media Player.
The best way to convert FLV to AVI is to use software program
AVIs can not be directly converted to JPGs. An AVI file is a video, a JPG file is a single image.