Example:
// A disk architecture folder1 | folder3 | | file4 | file5 file1 file2 folder2 | file6 file3 // The "File list" provides by the navigator when the "root" is the "current folder" folder1 folder2 file1 file2 file3 // The "File list" provides by the navigator when the "folder1" is the "current folder" (via nav_dir_cd()) folder3 file5