Monday 9 February 2004 1.08am
Norton Utilities for Mac, DiskWarrior or Drive 10 should all do the trick.
But I'd avoid Norton as the Mac version was terrible last time I used it.
Is the part of the manual you are reading definitely Mac-specific?
From doing a bit of Googling on this subject it seems that opinions are divided about the necessity/desirability of regular defragmentation on the Mac.
See also http://docs.info.apple.com/article.html?artnum=25668