I'm trying to understand what is happening. I had a Sena 10C and 10C Pro before this and did not observe this.
I'm recording video at the max 2560 x 1440, 30 frames per sec. When I look at the files on the SDXC card, I find a duplicate file written with a resolution of 576 x 320.
What is the purpose of the second smaller file? I looked in the User Guide and see no reference to it.