For simple, fast and high quality conversion of AVI files to MPEG formats use Leawo AVI to MPEG Converter.
As its name suggests, this tool is the simplest way to convert any type of AVI file to high quality MPEG format and other popular audio formats. This tool with a clean and clear interface supports inter-conversion between various other formats too. After the extraction of audio from the video files they can be stored in the AAC, WMA, M4A, and other formats. The tool is free from any type of adwares or spywares and is rich with features like: it can easily convert AVI to AAC, AVI to WMA, AVI to M4A, and so on; it is possible to trim video to acquire any part or segment of the video, you can crop videos to remove the video black margins, customizable video and audio effects help to set the video brightness and contrast, audio volume, and much more.
This must have tool also support the batch conversion of AVI to MPEG and the option to convert multiple AVI to MPEG simultaneously.