def to_s
     data = [@name.concat(Array.new(32-@name.size, 0)), 
             @name_size, 
             @type, 
             @color, 
             @left, 
             @right, 
             @child, 
             @created,
             @modified, 
             @sector, 
             @size].flatten
      data.pack(PACKING)
    end
Creates a byte string for this storage
@return [String]