![]() With the development of network bandwidth and people's requirements for video quality, H264 is more and more used to encode video downloaded from the video websites. When purchasing or renting video from the iTunes store, you'll get M4V files. M4V can work with DRM copyright protection, which makes sure DRM-protected M4V files could only be played with licensed accounts or specified devices and applications. M4V uses H264 for video coding and AAC for audio coding. ![]() It is a special type of MP4 format using file extension. M4V is a video format created by Apple for network streaming and handheld devices like iPod, iPad, iPhone and PSP.
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