1.To unmount an image file from a virtual drive
Step: Left mouse click the DAEMON tool icon on the right corner of your screen, then click "Unmount All Drives" on the popup menu.
2. Remove a virtual drive
Step 1: Right mouse click the DAEMON tool icon on the right corner of your screen, then move your mouse to "Virtual Devices" menu.
Step 2: Move your mouse to the "Device xx: " which you want to remove, then click "Remove Device" menu.
And you won't see that virtual drive in the souce dropdown list of Ideal Blu-ray Copy again.