.m4v文件扩展名，.m4v文件如何打开？

.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 iTunes

Apple QuickTime Player

RealNetworks RealPlayer

VideoLAN VLC media player

Adobe Flash CS5  

Miro

　

Windows

Apple iTunes

Apple QuickTime Player

RealNetworks RealPlayer

Media Player Classic

VideoLAN VLC media player

Adobe Flash CS5  

Miro

　

Linux

VideoLAN VLC media player

Miro

其它内容

来源：. m4v文件