Canon EOS 5D Mark III Instruction Manual (en)

k Enjoying Movies
The movie files recorded on the card can 
be transferred to a personal computer 
and played with ImageBrowser EX.
Playback and Editing with a Personal Computer
To have the movie play back smoothly on a personal computer, use a 
high-performance personal computer. Regarding the computer hardware 
requirements for ImageBrowser EX, refer to the PDF file ImageBrowser 
EX User Guide.
If you want to use commercially-available software to play back or edit 
the movies, be sure it is compatible with MOV files. For details on 
commercially-available software, contact the software maker.