| .m1v |
MPEG-1 Video File |
| .m4u |
MPEG-4 Playlist |
| .mp2v |
MPEG-2 Video File |
| .m2a |
MPEG-1 Layer 2 Audio File |
| .mp4v |
MPEG-4 Video |
| .mjpg |
Motion JPEG Video File |
| .modd |
Sony Video Analysis File |
| .meta |
RealPlayer Metafile |
| .moff |
Sony Video Data File |
| .mys |
Vineyard Captured Video File |
| .mpsub |
MPlayer Subtitles File |
| .msh |
Orbiter 3D Mesh File |
| .mvex |
Muvee autoProducer 6 Project File |
| .mp4.infovid |
Parrot AR Drone and Gyro Flyer Video |
| .mpg4 |
MPEG-4 Video File |
| .mmv |
MicroMV Video File |
| .m4e |
MPEG-4 Video File |
| .mpv2 |
MPEG-2 Video Stream |
| .mvb |
Multimedia Viewer Book Source File |
| .mpg2 |
MPEG-2 Video File |
| .mpeg4 |
MPEG-4 File |
| .m15 |
MPEG Video |
| .m75 |
MPEG Video |
| .mob |
MOBTV Video File |