Originally Posted by Fotobot
Why use this software instead of doing it in-camera?
SDFormatter does a cleaner job than most in-camera formatting algorithms, adhering strictly to the Secure Digital organization guidelines for flash card volumes.
I've found that cards formatted with it tend to show faster camera startup times and shorter inter-frame blackout times on several cameras (Leica SL, Leica M, Ricoh GXR, Nikon D750, and Olympus E-M1 are the ones I've tested). The differences are small but clearly noticeable.