How to convert PlayStation 2 .PSS video files into MP4:

Used "PSS Demux" (windows only | Download) extract audio and video codes from PSS video container
Run:
ffmpeg -i STING.m2v -i STING_adpcm.wav -c:v copy -c:a copy output.mp4
To merge audio & video codes back together in common MP4 container

FFMEPG dies not successfully convert .PSS video files (video codec works but audio codec will fail if its WAV/ADPCM based. Dolby digital will work fine.
Sources:

https://www.animemusicvideos.org/forum/viewtopic.php?t=28242&start=10

https://www.zophar.net/utilities/ps2util/pss-demux.html

https://branden-g.ca/Notes/Tech-Help/Linux-Repair/ffmpeg/How-to-merge-audio-and-video-file-in-ffmpeg.php

Date: February 9th 2026

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