03-17-2016, 10:02 AM
wikipedia wrote: The M4V file format is a video container format developed by Apple and is very similar to the MP4 format. But M4V files may optionally be protected by DRM copy protection. Apple uses M4V to encode video files, such as TV episodes, movies, and music videos, in its iTunes Store.
The m4v container contains the H.264 encoded data. Properly encoded, an m4v should play in iTunes or Quicktime or VLC.
Mocha is a tool that monitors your network activity and keeps a record of IP/MAC address pairings and firewall logs. It will give a warning when it notices any suspicious activity, like any changes in MAC address or any connection attempt to the firewall. Somehow it is linked to open m4v files. Check your file associations and change the m4v to be opened by Quicktime.