cant find any programs titled "clean disc 3", that does defragmenting, i seen ones that are titled "Clean Disk", but they are secure file shredders.
you might want to check out,
- Disk checker
http://www.rssoftlab.com/- O&O Defragmenter
http://www.oo-software.com/en/products/oodefragv4/- Diskkeeper
http://diskeeper.com/coverpage.asp- Perfectdisk
http://www.perfectdisk.com/- Defrag for Windows
http://www.pcmesh.com/defrag.htm- Defragmenter lite/Pro
http://www.abexo.com/defrag.htm