The full syntax of a directory path depends on your operating system:
In Windows Systems use something like:
- c:\program files\data\moodle
- c:\documents and settings\moodle\temp\saved
In Unix Systems use something like:
Note that it's usually a good idea to make sure the directory already exists. Sometimes Moodle can create the directory when required but this is not always possible.
Finally, make sure the case is correct (upper vs lower) and never include a trailing slash.