m4v是什么文件，m4v文件怎么打开？
m4v文件扩展名，m4v文件怎么打开？
.m4v
文件类型：iTunes Video File
扩展名为.m4v的文件是一个视频文件。文件说明：
MPEG-4 file extension used for videos downloaded from the Apple iTunes store; includes TV episodes, full-length movies, and music videos; similar to an .MP4 file, but may be copy-protected using Apples FairPlay DRM copyright protection.To play a protected M4V file, your computer must be authorized (using iTunes) with the account that was used to purchase the video.
Unprotected M4V files may be recognized and played by other video players by changing the file extension from .m4v to .mp4..m4v
打开.m4v文件
Mac OS
Apple iTunesApple QuickTime Player
RealNetworks RealPlayer
VideoLAN VLC media player
Adobe Flash CS5
Miro
Windows
Apple iTunesApple QuickTime Player
RealNetworks RealPlayer
Media Player Classic
VideoLAN VLC media player
Adobe Flash CS5
Miro
Linux
VideoLAN VLC media playerMiro
其它内容
来源：.m4v文件
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