Many thanks to @Bob520 and @arruntus for the help. The Sandisk Extreme Plus 128gb worked right out of the package. Expensive at $100. But at least it works. Thanks again.
No idea. I use that exact same card and it performs flawlessly for me. I did not format it or anything else. Popped it into the camera and it has worked fine ever since.
I bought an SD card. I bought the SD card that I checked in the forum. But C23 does not recognize it. What should I do? I do not know how. View attachment 15041