Converting .m4v videos to .avi format.
Converting iTunes Video Files directly to Audio Video Interleave Files (.m4v to .avi conversion) is doable and should be quite straightforward.
Use one of several currently available video editing programs or conversion tools, such as Freemake Video Converter or FFmpeg, to convert .m4v to .avi.
A timeline-based video editing software from Adobe
A multimedia conversion utility
Program for multimedia streaming and conversion
One of the most popular and successful free video conversion softwares
A multimedia importer for iTunes
A fully-featured video conversion program
A multimedia converting tool for Windows
A universal all-purpose free media, audio & video converter
A digital video converter for Windows