A file name may be up to 16 bytes in length and theoretically will be unique ; by using direct access methods on the directory structure , it is possible to rename a file to that of another -- .
Accessing such files may be difficult or impossible .
A file name may be up to 16 bytes in length and theoretically will be unique ; by using direct access methods on the directory structure , it is possible to rename a file to that of another -- although accessing such files may be difficult or impossible .