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M4V video format was developed by Apple and used as a media format for distributing videos through iTunes. It’s almost similar as MP4 video format except it may contain Apple’s DRM Protection. This video format is most used for protecting the copyright of TV shows, Movies, and other video contents of iTunes store. Also, Creating Chapter information is supported in M4V file. Beside iTunes and Apple QuickTime player DRM unprotected M4V files can be played with most video players. M4V files also can be opened with VideoStudio Pro and a long-range editing functionality can be applied in this format.