code: private void readVersion(TagValue tv) {
      int maj = tv.getBytesBigEndian(8, 1); // Major version
      int min = (tv.getBytesBigEndian(9, 1) & 0xF0) >> 4; // Minor version (in the first 4 bits of the
                                                          // byte)
      version = maj + "." + min;
    }
docs: Read version.
  
  @param tv the tv