mysql> select file_id, file, size from files where size < 0;
+---------+--------------+-------------+
| file_id | file         | size        |
+---------+--------------+-------------+
|  635609 | fooo 3.mpg   |  -773913892 |
|  635608 | baaar 1.mpg  |  -529282490 |
|  635603 | foooo 3.mpg  | -2035912248 |
|  611851 | pagefile.sys | -2147483648 |
+---------+--------------+-------------+
4 rows in set (0.32 sec)