I am a bit unfamiliar with doing this and don't want to do something harmful so I thought I would ask the usual suspects for some advice in advance rather than post-hoc. I read the disk utility help blurb on this and feel ok, but would really appreciate some further help. 1. what would be an appropriate size to select, obviously this depends on the useage, but a ballpark for small average above average and large would be great. 2. what exactly is a disk image, i.e., is it just as the name suggests? 3. is there anything I should know about encryption if I am going to use it, aside from not forgetting the password? 4. where is an appropriate place to store the disk image if you are looking to keep it out of the way and confidential? 5. is there a way to make this disk image somewhat invisible? 6. the help blurb said I can add new files in the future and that they would be placed in a volume on my desktop and that I can drag files to it. what then happens with this volume or what am i supposed to do with it if i don't want it living on my desktop? thanks i really appreciate the advice. and, happy new year in advance.