Sorry to disagree with you guys but the mags should always be done on the camera because data integrity is the highest priority. This may change in the future but right now it's absolutely essential.
If you remove the profile files on the mag, then that tells the camera the mag hasn't been formatted so it's one way to let the camera know it needs to format the mag. Formatting on the pc/mac will also do that but the camera still needs to do the formatting to make sure it's done 100% the way it expects it.
If you remove the profile files on the mag, then that tells the camera the mag hasn't been formatted so it's one way to let the camera know it needs to format the mag. Formatting on the pc/mac will also do that but the camera still needs to do the formatting to make sure it's done 100% the way it expects it.