diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000000000000000000000000000000000000..ed8adc02f8ec0353ae1e4eeb22ee4daf8e04a277
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,12 @@
+//==========================================================================
+//  AIDA Detector description implementation (DD4hep)
+//--------------------------------------------------------------------------
+// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
+// All rights reserved.
+//
+// For the licensing terms see $DD4hepINSTALL/LICENSE.
+// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
+//
+// Author     : M.Frank et al.
+//
+//==========================================================================
diff --git a/DDRec/python/DDRec.py b/DDRec/python/DDRec.py
index ada9983e3466752adf582a8ff869f9a2cecb9fde..1496145cd98fea6a42c84783f0cf3107241f178c 100644
--- a/DDRec/python/DDRec.py
+++ b/DDRec/python/DDRec.py
@@ -9,7 +9,7 @@
 #
 #==========================================================================
 import logging
-import DD4hep as core
+import dd4hep as core
 
 def loadDDRec():
   from ROOT import gSystem
diff --git a/DDRec/python/dumpDetectorData.py b/DDRec/python/dumpDetectorData.py
index 25b5af6dcb0fba1d996ed5e72dfa21b1a954a9d8..443a18931d59a0751d5ec3bea7d8395bb30494fb 100644
--- a/DDRec/python/dumpDetectorData.py
+++ b/DDRec/python/dumpDetectorData.py
@@ -73,7 +73,7 @@ except ImportError,X:
   sys.exit(errno.ENOENT)
 
 try:
-  import DD4hep
+  import dd4hep
 except ImportError,X:
   logging.error('dd4hep python interface not accessible: %s',str(X))
   logging.error("%s",parser.format_help())
@@ -87,12 +87,12 @@ except ImportError,X:
   sys.exit(errno.ENOENT)
 #
 
-DD4hep.setPrintLevel(DD4hep.OutputLevel.ERROR)
+dd4hep.setPrintLevel(dd4hep.OutputLevel.ERROR)
 logging.info('+++%s\n+++ Loading compact geometry:%s\n+++%s',120*'=',opts.compact,120*'=')
 
 
 
-description = DD4hep.Detector.getInstance()
+description = dd4hep.Detector.getInstance()
 description.fromXML(opts.compact)