84 䡲 Cyber Forensics Field Manual, Second Edition
m1v—An elementary MPEG-1 video stream. Cannot contain audio.
m2p—MPEG-2 program stream.
m2v—An elementary MPEG-2 video stream. Cannot contain audio. Requires MPEG-2
codec (commonly acquired with DVD player software) to playback. Most professional
DVD authoring packages require m2v fi les.
mov, moov—Quicktime movie.
mpa—An elementary MPEG-2 audio stream.
mpg, mpeg—A multiplexed (audio and video combined) MPEG-1 or MPEG-2 fi le
(although most commonly MPEG-1).
mp1—MPEG audio, layer 1.
mp2—MPEG audio, layer 2.
mp3— e ubiquitous audio format that we all know and love. It is actually called
“MPEG audio, layer 3” and, as the name implies, intended to encode the audio portion
of MPEG-1 movies.
mp4 ...