Therefore, as an iTunes movie addict, you really would like to convert iTunes videos to MP4 files, which makes it possible to enjoy iTunes videos more convenient and easier, for example, to play iTunes on home theatre system, such as Samsung Smart TV, and to share iTunes movies to social networking site, such as YouTube, and so on. The primary difference between M4V and MP4 is that M4V files are optionally encrypted by Apple’s FairPlay DRM technology. But as diametrically opposed to MP4, another similar format, iTunes M4V container format, developed by Apple Inc., is able to be played only on Apple-approved devices or players. These are the reasons why MP4 is so ubiquity and widely welcome. As such, MP4 format can be payable on any portable devices without any obstacles. With the unexceptionable compatibility, MP4 is not only used to store videos and audio tracks, but also aims to store subtitles and images.
Based on the QuickTime format specification, MP4, published in 2001, is a digital multimedia contain format, which is one of the most popular and universal video format in the digital market.
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