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The Ultimate Guide for switching from a PC to a Mac
(Part 2 - coming soon)

Monday, October 6, 2008

MP4 and M4V!

There really is no difference between MP4 and M4V, but M4V files automatically load in iTunes. Handbrake lets you create either an M4V or an MP4. If you get an MP4 file however, you can easily change it into an M4V to make it iTunes-friendly. There is no conversion necessary because it is already using the right codecs. You just have to change the extension. Double-clicking on an M4V will load iTunes, but it is still possible to open it in QuickTime.

3 Comments:

Blogger Matthew D. said...

Does the extension affect the playback in iTunes? I feel like some movie files I have play really poorly in iTunes while others play smoothly.

October 6, 2008 at 11:08 PM  
Blogger Emsagues said...

from wikipedia:
The M4V file format is a video file format developed by Apple and is very close to the MP4 format. The differences are the optional Apple's DRM copyright protection, and the treatment of AC3 (Dolby Digital) audio which is not standardized for the MP4 container.

...unprotected M4V files without AC3 audio may be recognized and played by other video players by changing the file extension from ".m4v" to ".mp4".

Ergo, if your m4v file does use AC3 audio, or DRM, just changing the file format may not work.

September 8, 2012 at 7:10 PM  
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