現在のシステムのデフォルトのエンコードでファイルに書き込む

FilePatch = Path.Combine(movie.SaveFolderPatch, " .txt");

                    FileInfo fi = new FileInfo(FilePatch);

                    if (fi.Exists)

                        fi.Delete();

                    FileStream fs = File.Open(FilePatch, FileMode.OpenOrCreate, FileAccess.Write);

                    textSave = "[ ]";

                    textSave += crlf;

                    textSave += " =" + movie.Actor;

                    textSave += crlf;

                    textSave += "\r";

                    textSave += crlf;

                    textSave += "[ ]";

                    textSave += crlf;

                    textSave += " =" + movie.wherefrom.ToString();

                    textSave += crlf;

                    textSave += " =" + movie.ProgNotes;

                    textSave += crlf;

                    textSave += " =" + movie.TypeName;

                    textSave += crlf;

                    textSave += "\r";

                    textSave += crlf;

                    textSave += "[ ]";

                    textSave += crlf;

                    textSave += " =" + movie.Recommend.ToString();

                    textSave += crlf;

                    textSave += " =" + movie.ProgLevel.ToString();

                    textSave += crlf;

                    textSave += " =";

                    textSave += crlf;

                    textSave += "\r";

                    textSave += crlf;

                    textSave += "[ ]";

                    textSave += crlf;

                    textSave += movie.Synopsis;

                    textSave += crlf;

                    Byte[] info = Encoding.Default.GetBytes(textSave);

                    fs.Write(info, 0, info.Length);

                    fs.Close();