PSMF

PSMF (or PMF, PlayStation Portable Movie Format, PlayStation Movie Format) is a proprietary multimedia format associated with Sony's PlayStation Portable game console.

Format details
There is a header that's usually 2048 bytes, followed by MPEG Program Stream data reportedly containing H.264 video and ATRAC audio.

Identification
Files begin with ASCII "".

Sample files

 * https://samples.ffmpeg.org/PSMF/
 * http://samples.mplayerhq.hu/playstation/

Links

 * MultimediaWiki article