mp4 vs m4v

heisenberg123

macrumors 603
Original poster
Oct 31, 2010
6,495
9
Hamilton, Ontario
I always thought they were virtually the same but some devices that support mp4 dont recognize m4v files, a simple renaming them the mp4 makes the show up on that said device but why would m4v not work?
 

ProudLoz

macrumors regular
Aug 26, 2012
240
0
If I remember correctly, .m4v is a special extension from the MP4 container that Apple uses to allow certain atoms, streams, and metadata to be used for their own video files that they sell on the iTunes Store.

In other words, the .m4v extension is kinda propriety to Apple products, and so not all other non-Apple devices will be able to read the extension.

Another thing would be that the device that you're using hasn't been updated to recognize the .m4v extension yet.
 

heisenberg123

macrumors 603
Original poster
Oct 31, 2010
6,495
9
Hamilton, Ontario
If I remember correctly, .m4v is a special extension from the MP4 container that Apple uses to allow certain atoms, streams, and metadata to be used for their own video files that they sell on the iTunes Store.

In other words, the .m4v extension is kinda propriety to Apple products, and so not all other non-Apple devices will be able to read the extension.

Another thing would be that the device that you're using hasn't been updated to recognize the .m4v extension yet.
thanks for the reply
 

MonkeySee....

macrumors 68040
Sep 24, 2010
3,855
426
UK
My meta data collector takes the mp4 and gathers all the info and Artwork about the show/movie and saves it as an m4v for itunes.
 

dynaflash

macrumors 68020
Mar 27, 2003
2,119
5
.m4v extension tells apple devices to recognize chapter markers and AC3 audio. afaik no effect on non apple devices.

Edit: as well a .m4v suffix will open the file up in iTunes, while a .mp4 extension will open it up in QT by default.