I have ordered a 1TB G-Drive Mini to back up all my photography files. As this drive will be mobile or left in a different location to home and work I would like to protect it. So thinking a password protected Disk Image might be the way to go. As far as I know, Apple does not offer any software to protect an external drive or volume. ie. like a Password to open and mount the drive. So is an encrypted Disk Image the way to go? And is 1TB ok, or is it too large? At the moment I have a 1TB partition on a 3TB Hitachi internal drive in my Mac Pro where I store all my photography files. But wondering now that when I want to clone it using CCC to this 1TB Disk image will it still work ok? ie. my source drive/partition is not a Disk Image. Do I need to back this up. Wipe it and create a 1TB Disk Image (or say 990MB Disk Image as 1TB is too big as it needs other system files also) and THEN clone this to my G-Drive Mini. Or can I leave the Source partition alone. Then create a Disk image on the G-Drive. Then when I want to clone it, mount it. Then open CCC to clone to the Disk image. Hope this make sense. Which option is better? Any advice, suggestions on how to set this up appreciated.