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Another method of quick and easy manual backup
I'll try this tonight. I cycle through a bunch of DVD-RWs but I find that they're so much slower than DVD-R.
Another method of quick and easy manual backup
Yes, a DVD-sized image will take up 4.4 GB even though the .dmg is only partially filled. However, in Disk Utility, you can create a "sparse disk image" which expands in size as files are added. The extension appears as .sparseimage rather than .dmg.
Another method of quick and easy manual backup
But can you limit the growth of a "sparse disk image"? As far as I know you cannot, it can grow until your HD is full. So a fixed size DMG ensures that you can instantly back up whenever you feel the need to...
Another method of quick and easy manual backup
Yes, a sparse image will only grow to the maximum size you give it when you create it, it is not infinitely expandable. |
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