Thanks Matt.

All correct.

FWIW, I used the program ffmpeg on Linux to expand the files as I can then do the whole lot in one command and just leave it to get on with it. Probably I should create a Makefile or a smarter script to manage that process, so that it only expands files that aren't already expanded. I'm fairly sure PGM use libffmpeg internally to do similar.


Jazz relative beginner, starting at a much older age than was helpful.
Kawai MP6, Korg M50, Ui24R, Saffire Pro 40.
AVL:MXE Linux; Windows 11; Win8.1: Scarletts
BIAB2022 UltraPAK, Reaper, a bunch of stuff.