According to disktrix, you're supposed to put directories and startup files at the very outer edge of the disk platters. Then your most frequently used applications. Then on the inner part of the disk, all your little used stuff like pictures and mp3's and zip archives. Is this really the best strategy? Or can we do better? Certainly you won't see 400% improvement gains like they claim, unless you have a very bad layout that's severely fragmented to begin with. Considering modern drives with multiple platters, is it best, perhaps, to just be sure the files are defragmented? And let the disk firmware and OS determine placement? Or perhaps it would be best to put the directory smack dab in the middle of all your frequently accessed data? And finally, is the outer edge the very fastest? Especially considering that modern drives will either park the heads totally off the platters, or, let the heads float in the middle of the disk and then park them. And, like I just said, is the outer edge the fastest? There's extra processing time done by the controller to work there, because, ~1GHz is the current limitation. Most recent drives top out at 1GHz, so data density isn't the highest at outer edge, it's somewhere in the last 3rd of the drive. All in all, what's the strategy that's worked best for you?