ls и du врут

muromec@lightmare ~ % ls .mldonkey/incoming/directories/gambit_1 -l 15:10 pts/2
итого 170393
-rw-r--r-- 1 muromec muromec 1254096896 Ноя 23 00:39 1-2.avi
-rw-r--r-- 1 muromec muromec 1242503168 Ноя 23 00:43 3-4.avi
muromec@lightmare ~ % du -h .mldonkey/incoming/directories/gambit_1 15:10 pts/2
167M .mldonkey/incoming/directories/gambit_1
muromec@lightmare ~ %

wtf?