Convert M4V to AVI

.m4v

Apple QuickTime Player

The M4V format was developed by Apple for Itunes Store and it is much more similar to the MP4 format with a slight difference in DRM protection. If M4V format has DRM protection than the iTunes account used to process the file will have to be authenticated on the computer playing the file.

The M4V supported files have both the audio as well as the video data, the file extension M4V can be converted into the MP4 file extension in order for it to play on an unauthenticated computer because the M4V files are protected by Apple’s DRM. MP4 files do not provide with the functionality to create chapter information while M4V file does that.

Apple

.avi

Video Lan VLC Player

AVI stands for Audio and Video Interleave. It has an extension written as .avi, and users use this same format to store audio and video on their PC, which was developed by Microsoft in 1992 for its Video for Windows project. It allows the simultaneous playback by keeping video and audio into a single file. The simple architecture of .avi format will enable it to run on various operating systems such as Windows, Mac, Linux, Unix. It is supported by multiple web players as well.

AVI format uses Resource Interchange File Format (RIFF) support, where the real data is stored into chunks, and each chunk gets recognized by a FourCC tag. Out of these individual chunks, the first one can be recognized by the hdrl tag, and it can decode the chunk containing metadata for the video. The second chunk gets identified by the movi tag, and it includes the actual audio and visual data which makes up the AVI movie. It uses less compression rather than the MOV and MPEG file formats.

Microsoft