I have now a "Elgato Game Capture HD" which can record the MorphOS image if you set the screen mode to "1280x720 (50Hz 37.5kHz) 720p". I use it with Linux Open Broadcaster Software (OBS) but also at Windows it should work ;)
An example:
https://youtu.be/fZeLc6nZrqE

[ Edited by ALB42 23.06.2018 - 17:30 ]