Kirk,
deleting files/folders via finder is no problem,
but
Ingest Task showed this message:
<
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.
>