How old was this article??
Diskeeper has been around for ages.
Search for Disktrix, and see why they claim it's better.
Personally, I have my doubts about the 'physical' placement of data. My desktop PC uses 2 drive RAID stripe, yet Disktrix apparently assigns my 'performance' data to the outer, faster spinning sectors of the 'disk'??
I imagine it does the same 'illusion' with a partitioned drive?