The one feature that Defraggler is missing that keeps me from making it my sole defrag tool is the option to defragment and move directories/folders to the start of the disk. I've got drives with lots and lots of folders and smaller files, and the directory access is what kills performance on those volumes, not file fragmentation. The only reason I keep an old copy of Norton SpeedDisk around is so that I can occasionally optimize the directory position to the start of the disk so that the heads don't thrash as much.
Still a nice tool, though. A link on the site to a paypal or other contribution mechanism would be great, too - I don't need full business support, but I'd like to throw some cash to Piriform for maintaining this utility.
