diff --git a/transport/disk.py b/transport/disk.py
index 1d966c7..d8ee757 100644
--- a/transport/disk.py
+++ b/transport/disk.py
@@ -95,7 +95,7 @@ class DiskWriter(Writer):
 			_delim = self._delimiter if 'delimiter' not in _args else _args['delimiter']
 			_path = self._path if 'path' not  in _args else _args['path']
 			_mode = self._mode if 'mode' not in _args else _args['mode']
-			info.to_csv(_path,index=False,sep=_delim, mode=_mode)
+			info.to_csv(_path,index=False,sep=_delim)
 			pass
 		except Exception as e:
 			#
diff --git a/transport/etl.py b/transport/etl.py
index b2e0e6a..198bdf0 100644
--- a/transport/etl.py
+++ b/transport/etl.py
@@ -99,7 +99,7 @@ class Transporter(Process):
                     # _target['write']['lock'] = True
                     pass
                 _writer = transport.factory.instance(**_target)
-                _writer.write(_data.copy(),**_args)
+                _writer.write(_data,**_args)
                 if hasattr(_writer,'close') :
                     _writer.close()