m

milli-  0.001

M

Mega (as in Mbytes) 1,048,576   (1024 x 1024)

M

Mega (as in M$) 1,000,000

MAC

Multiplexed Analog Components

MAD

Mean Absolute Distortion

MASK

Multiple (bit) Amplitude-Shift Keying

MD

Motion vector Displacement

ME

Mix/Effects

MHEG

Multimedia/Hypermedia Experts Group

MHz

MegaHertz

MII

(as in "M2") Panasonic videotape format

M-JPEG

Motion-JPEG

ML

Main Level

mm

millimeter

MP

Main Profile

MPC

Multimedia Personal Computer

MPEG

Motion Picture Experts Group

MPEG-1

A video compression standard from the MPEG

MPEG-2

Another video compression standard from the MPEG

MPSK

Multiple (bit) Phase-Shift Keying