I see all the posts which like various defragmentation programs which you have to buy. This similiar discussion has occured in many forums I have viewed. What is lacking in all are reasonable tests conducted by a third party with no axe to grind. The main point is to defrag every week-10 days with whichever you wish [and have installed]. I use XP's built in defragmentation program. I have never seen anything convincing enough to justify buying another [20 to 70 bucks]. I just want the file system shaped up. Fancy graphics and endless options in the "buy me, I am better than the others" do not appeal to me. Gene