int fileModes = fileMode.getFileMode();
int fileLinks = 2 + parentDir.getDirectories().size();
rripFactory.doPXEntry(fileModes, fileLinks, 0, 0, 1);
// TF: Timestamp
ISO9660ShortDateDataReference date = new ISO9660ShortDateDataReference(parentDir.lastModified());
rripFactory.doTFEntry(RRIPFactory.TF_MODIFY, date);
// Update Directory Record Length
return finalizeDR(memory, helper.getDifferenceTo(position));
}