This has got to be the best defrag utility ever created. It is filled with features and many new ways to defrag your drive. The program is built around the concept that "file placement" is more important than defraging files. It provides options to place the files you use frequently farthest to the outside of the drive and place unused files(such as zip files) to farthest inside of the drive. THis is a good option because the outside of the drive is faster than the inside. With the files you use frequently on the ouside, you most likely will notice a considerable improvement in computer startup and file loading. You can even place certain files and folders in order on the outside. Like to place the windows folder the closest to the outside of the disk to improve boot times then to have your games and documents placed rights after it to improves their times. Also don't forget the programs folder! It also includes a higly detailed(and long manual) describing how drive fragmentation happens and all the ideas to fix it. Definetly replaces all other defraggers and it may even be worth paying for their new 2008 verison of Ultimate Defrag. Definetly worth trying.