Quote:
Originally Posted by dnanian
A secure erase in Finder writes zeros over the erased blocks. Again, Finder 'erase' is different than writing a whole new directory structure for the drive.
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OK...I got that ("So, 'secure' erase does indeed overwrite the data, but leaves the directory structure untouched..."). But I still don't know "...what is the functional/operational difference between the two?" IOW, unless the directory itself is damaged, what advantage does a complete "repaving" provide? Is it just a matter of being "SuperDuper cautious" when making a first-time backup? (i.e., "Just in case there are small 'potholes' in the road that haven't yet caused any problems, let's fix 'em while we're here, before they become dangerous sinkholes.")