Grouping [folder entry]

Need help!

I have a ITB external disk for processing both small and large video files (up to 5GB). With many files, there are numerous [folder entry] files scattered all over the disk. The folder files themselves are all defragmented, but their placement makes defragging larger files difficult if not impossible. Is there some way to group all these files at the head of the disk (similar to moving large files to the end)?

Thanks

HYH