You don't want to sit and wait for a disk to finish copying, but you really don't want to get coffee, only to come back and find your Mac waiting patiently for something to do.
Use this script to get a headsup when to swap disks, to keep your card readers occupied at all times.
Creator: Jeroen de Jong
Last Update: 20160422
Download: Send email when disk done - Disk Idle event.zip
You can use and alter this script anyway you like. If you do, please let us know so we can feature your update here.