podle jejich SVN mam pocit, ze se na tom stale pracuje (nebo to tak alespon vypada )

btw:
Q.: How many differencies are between the Ultra Defragmenter and
well known JkDefrag application?

A.: Analysis algorithm is generally the same. But defragmentation is done
in different ways. JkDefrag tries to optimize files placement using
original algorithm that is complex enough. On the other hand, Ultra
Defragmenter is simple as possible - it tries to move all fragmented
files to free space areas. Nothing more. 'Compact' option was added to
give you an ability to move all files to the beginning of the volume to
enlarge free space areas for future defragmentation success.

The best advantages of the Ultra Defragmenter are an ability to defragment
system files at boot time and well readable reports. Also our program has
a nice GUI that is very important for many peoples. At the same time
advanced users can use console interface that is a little bit faster
because don't use any cluster map representation.

The main disadvantage of both applications (Ultra Defragmenter and JkDefrag)
is that they are based on MS defragmenting interface that has very ugly
implementation. We can't change it's behavior because it's a part of the
filesystem drivers (ntfs.sys, fastfat.sys) that are too complex and not
open source to modify or replace them.