work with my "old" Lexar CF card (on Canon 1DX MKII)... don't work with my Integral Ultima ProX CFAST 2.0
all erase and format each time I used it with the camera...al the same when testing ...
" Warning: Not erasing volume "/Volumes/EOS_DIGITAL/", because it contains system files or is not a removable volume.
Finished copying from volume "/Volumes/EOS_DIGITAL/".
Volume "/Volumes/EOS_DIGITAL/" has been unmounted and is safe to eject."
Hope it help
Can we change the permissions mode of the card with an app called "Batchmod" on MAC 10.14.4...
Thanks