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Funny you should ask this!! I am needing an answer to the exact same question!!! Someone PLEASE HELP US!!!
 
i actually have carbon cloner
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what about super duper.
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Similar apps with plenty of personal preferences either way, on these forums and elsewhere. Google/Mroogle Carbon Copy Cloner vs. Super Duper and you'll see what I mean. Choose whichever suits you - and whichever is more likely to ensure that you always backup.
 
CCC will backup to a disk image. Not sure how it would work if you're scheduling backups thought, since presumably you'd need to leave the disk images mounted.
 
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