Defraggler doesn't move specific files to end of the drive

Tried using both full defrag and quick defrag. But still the same, Defraggler will not move the files I added eg. mov, mpeg, avi, tar, rar, etc files to the end of the drive. I have the selection to files larger than 50 MB yet it still allocates the files to the mid to mid/first part of the drive.

The only way Defraggler allocates designated files to the end of the drive is if I select a particular block and then select to the end of the drive.