code: public void setMovedDirectoryStore() {
          if (movedDirectoriesStore == null) {
              movedDirectoriesStore = new ISO9660Directory(MOVED_DIRECTORIES_STORE_NAME);
              addDirectory(movedDirectoriesStore);
              // Force iterator recreation
              sortedIterator = null;
          }
      }
docs: Create and Add Moved Directories Store to Directory Hierarchy