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Another method of quick and easy manual backup
Authored by: tyip on Jul 12, '06 01:09:03PM

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.

Responding to the comment about using a .dmg file, that's a great idea to make sure the files fit on the disk, but doesn't that lengthen the backup time because you're backing up all 4.4 GB even though the .dmg is only partially filled?



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Another method of quick and easy manual backup
Authored by: gemsling on Jul 12, '06 07:45:18PM

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.



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Another method of quick and easy manual backup
Authored by: szabesz on Jul 13, '06 03:30:51AM

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...

Back up time is not big deal if you burn that DVD-R (or DVD-RW) disc while you are under the shower or during having your dinner :)



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Another method of quick and easy manual backup
Authored by: Tonex on Jul 13, '06 06:45:35AM

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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