badartdog, I'm a TechTool Pro user. One feature of its Optimization ("defragging") function that I like is the graphical representation of fragmentation of files (or the directory in Directory Maintenance). While, as others have said, fragmentation is not a big issue with OSX, I like things to be all together. If the graph shows several gaps, then I go ahead and execute the routine. If you're a neat freak, then do it. Yeah, it's mostly conceptual, but hey, why not tidy up?
