5 Replies Latest reply: Dec 28, 2012 10:49 AM by anthonyfromdf
anthonyfromdf Level 1 (0 points)

I have downloaded Mountain Lion but wish to back it up first as I know it disappears if you install it first. It is too big for DVD (deliberate by Apple I wonder?). I have an 8 Gb memory stick but not sure how I can copy to it and make it bootable as well. Would a dual layer DVD work. Can anyone help please?

Mac mini, Mac OS X (10.7.5)