Ampg4

It is the global file extension for the official container format defined in the MPEG-4 standard. This format allows you to combine different multimedia streams (most of the time audio and video) into one single file.

MP4 related extensions:

.avi

 

Microsoft Video for Windows Movie

.mov

 

QuickTime Movie

.mpg

 

Mpeg Video

.mvb

 

Multimedia Viewer Book

.rm

 

RealMedia File

.3gp

 

3GP Video File

.asf

 

Advanced Systems Format Media

.dv

 

Digital Video

.flv

 

Flash Video File

.ivf

 

Indeo Video File