code: private byte[] getFirstItem() throws IOException
     {
        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
  
        int[] firstItem =
           {0x1F, 0x50, 0xE0, 0x4F, 0xD0, 0x20, 0xEA, 0x3A, 0x69, 0x10, 0xA2, 0xD8, 0x08, 0x00, 0x2B, 0x30, 0x30, 0x9D,};
  
        writeInts(firstItem, outStream);
  
        return outStream.toByteArray();
     }
docs: Returns the first item.
  
  @return first item
  @throws IOException {@link IOException}