out.write(reliable.identifier2);
out.write(ReliableFile.identifier2);
	public synchronized void close() throws IOException {		if (reliable != null) {			try {				// tag on our signature and checksum				out.write(reliable.identifier1);				byte crcStr[] = ReliableFile.intToHex((int) crc.getValue()).getBytes();				out.write(crcStr);				out.write(reliable.identifier2);				try {					out.flush();					((FileOutputStream) out).getFD().sync();				} catch (IOException e) {					// just ignore this Exception					//Debug					e.printStackTrace();				}				super.close();			} finally {				reliable.closeOutputFile();				reliable = null;			}		}	}