I do not know if this has suggested in the past, but, if there is an option to move large files towards the end of the drive, why not one for moving certain files (by either size or type) towards the beginning of the drive.
An option to ignore (not move) already defragmented files would be extremely good as well.
It might be tough to implement, but if the program "defragmented" on memory first to make all the decisions of where to move the files, it could then avoid what several versions do; move the same file a few times whilst defragging. I have noticed it as a big problem mainly when defragmenting the whole drive, as it will keep on trying to find space for those large files now kept at the end which have not been able to be defragged.
