by Stormcaller on 16 Jan 2015, 16:15
Check the preferences as above to see what folder/directory on your computer the recordings have been saving to, then go open up windows explorer/OSX Finder and drag them out of there and onto your USB drive.
You could in theory set the folder in preferences to your usb drive, but I wouldn't recommend it in case the USB drive gets knocked out of the port when recording.