MP4 (aka MPEG-4 Part 14) is one of the most popular video formats that can be reproduced on almost all devices: TV, iPhone, computers, portable players, smartphones, car systems, watches, online plarforms, etc. To playback such video files, you need to have QuickTime codec on your device and might need a special media player to watch such films on a computer. M4V is a media standard created for Apple iTunes library. M4V video files are often copyright protected movies from Apple iTunes. A FairPlay-protected M4V file can only be played on a computer authorized (using iTunes) with the account that was used to purchase the video.What is the difference between M4V and MP4? Unauthorized reproduction of M4V files may be prevented using Apple's FairPlay copy protection. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority ().

A separate hint track is used to include streaming information in the file. Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. Apple uses M4V to encode video files in its iTunes Store. The primary difference is that M4V files may optionally be protected by DRM copy protection.

The M4V file format is a video container format developed by Apple and is very similar to the MP4 format.

Like most modern container formats, it allows streaming over the Internet.

Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. International Organization for Standardization

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