I used the unofficial modified firmware that removes the video record limits. I discovered that the camera only recognizes firmware in card slot #1 (the UHS-II slot) when installing the firmware.
As a convention, I think I will keep a DCOLYMP directory with the modified 3.4 firmware on my UHS-II card, and a DCOLYMP directory with the unmodified 3.5 firmware on my UHS-I card, so if desired, I can easily swap between the two firmwares. That being said, I don't really need to run v3.5 firmware since I don't own the 8-25 f/4 pro lens, and so far, I haven't done focus stacking.
In this case, it didn't matter, since the longest video I shot was 16 minutes. But that performer was a storyteller telling a single story in her 1/2 hour slot and possibly may have gone long. But as bad luck would have it, that also was the performance I noticed that I had the manual focus clutch ring on the MF position, and I had to start/stop the video to get back into auto focus mode.
In terms of the modified firmware, I had noted in the thread about the firmware that the latest person to provide the firmware (toshische) hadn't posted since March 2021. At the time I posted, the directories holding the modified firmware had disappeared. But they are now back.
