Convert mv4 to divx

What is the difference between .mv4 and .divx?

Description: M4V is a video container that stores audio and video data used for iTunes files. Files of this type may be protected from illegal viewing and copying with Apple FairPlay DRM. In this case audio or video files should be bought in iTunes store. Not protected files can be viewed almost in any modern player because the format is based on MPEG-4 structure.; A DivX-Encoded Movie File, designated with the .divx file extension, is a digital video format that offers a high-quality, highly compressed viewing experience. Developed by DivX, LLC, this format is designed to compress lengthy video segments into smaller sizes without significantly sacrificing visual quality. This enables users to store and distribute high-definition videos more efficiently over limited bandwidth or storage capacities. The DivX codec, which is required to play these files, supports advanced multimedia features such as multiple video streams.