# File lib/cloudfiles/storage_object.rb, line 268
    def load_from_filename(filename, headers = {}, check_md5 = false)
      f = open(filename)
      if check_md5
          require 'digest/md5'
          md5_hash = Digest::MD5.file(filename)
          headers["Etag"] = md5_hash.to_s()
      end
      self.write(f, headers)
      f.close
      true
    end