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[MrBackAlleySka]

Think of an ISO like this...to have a reproduction of "My Room", you need all the furniture I have, AND have it all in the same place...If you simply take all my furniture, and put it in another room, it wouldn't be "My Room", but if you take a picture of my room, and arrange the furniture to the same exact places as they were in my room, you have an almost perfect working copy of "My Room". an ISO is like a box with all my furniture, and that photograph stored in it.