# File lib/numru/nusdas.rb, line 755
    def parse_nusd(str)
      @meta[:creator] = str[0,72].gsub(/\000/,'')
      # flength_oct = get_sint8(str[72,8])
      version = get_sint4(str[80,4])
      unless (version == 11 || version == 13)
        printf "NuSDaS vsersion is %d\n", version
        raise "this version is not suported"
      end
      # flength = str[84,4].unpack("N")[0]
      # nrecord = str[88,4].unpack("N")[0]
      @meta[:ninfo] = str[92,4].unpack("N")[0]
      @meta[:nsubc] = str[96,4].unpack("N")[0]
      return hash
    end