As noted in Knowledge Base article #25770, the version of Disk Utility (10.5.1) included with Mac OS X 10.4.2 can fixed overlapped extent allocation errors -- problems with disk directory structure ...

It won't cure all of your Mac's ills, but a quick and easy first step toward bringing a sluggish Mac back to health is using OS X's Disk Utility to repair disk permissions. Matt Elliott Senior Editor ...

Poor Disk Utility. It seems fated to remain one of Mac OS X’s most underappreciated utilities. If you’ve even launched it at all, chances are you haven’t gone beyond using its First Aid features to ...

Practically everyone has files or folders they keep on their Mac that they don't want anyone else to access. AppleInsider explains how to keep these files secure by turning a folder into a protected ...

Disk Diag from Rocky Sand Studio Ltd. is another one-trick* pony utility for Mac OS X. Updated in December, it simply scans your home folder to locate unneeded files, which you can choose to delete.