Most olyan találtam, hogy ntfs-3g tud tömörítés a compression opcióval.
man ntfs-3g:
compression
This option enables creating new transparently compressed files in directories marked for compression. A directory is marked for compression by setting the bit 11 (value 0x00000800) in its Windows attribute. In such a directory, new files are created compressed and new subdirectories are themselves marked for compression. The option and the flag have no effect on existing files.