Why we need to convert AVI to MP4 Video?
You might have plenty of movies or video clips saved in AVI format, however, when you want to play your favorite AVI movies on some media applications and portable media devices that do not support AVI format, you have to change AVI to MP4 video format, which is commonly used on many portable media devices, such as iPhone, iPod, iPad, HTC and so on, then you can cross the format boundaries, and play the transferred MP4 video files freely.
How to Change AVI to MP4?
Following is the guide of converting AVI to MP4 with the best AVI to MP4 Converter - the Wondershare Video Converter Ultimate, which is so powerful that it can convert any video or audio among WMV, AVI, MP4, MKV, or more, change videos to DVD disc, DVD folder, or ISO files with ease, and so on. Now please free download it via the link below, then follow the tutorial to convert AVI to MP4.

Note: If you have difficulty in converting AVI to MP4 for Mac, here is Mac Video Converter Ultimate.