MajorGeeks has published a review on O&O Defrag Professional Edition Version 6

Most of today’s performance talk revolves around CPU and graphics card performance and little is discussed about how optimizing disk I/O (Input/Output) can offer performance gains. In the world of performance, disk I/O is like the red headed step child. Defragging your hard drive can improve I/O performance by reorganizing the data on the platters in a more logical way. In Windows 2000 and Windows XP there lies a very chopped down version of a popular defragmenting software package called Disk-Keeper and lets face it, it doesn’t do much in the face of optimizations and often takes several defrag runs to get any noticeable change (if you’re lucky). I would like to add that the full version of Disk-Keeper is quite nice and does much more than the “lite” version that Microsoft has slipped in there. This is where other utilities like O&O Defrag come into play.

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