diff --git a/src/osgPlugins/dae/ReaderWriterDAE.cpp b/src/osgPlugins/dae/ReaderWriterDAE.cpp
index fbb6bb663..2d210af5c 100644
--- a/src/osgPlugins/dae/ReaderWriterDAE.cpp
+++ b/src/osgPlugins/dae/ReaderWriterDAE.cpp
@@ -29,8 +29,20 @@
 class ReaderWriterDAE : public osgDB::ReaderWriter
 {
 public:
-    ReaderWriterDAE() {}
-    
+    ReaderWriterDAE()
+    {
+        dae_ = new DAE();
+    }
+
+    ~ReaderWriterDAE()
+    {
+        if(dae_ != NULL){
+            delete dae_;
+            DAE::cleanup();
+            dae_ = NULL;
+        }
+    }
+
     const char* className() const { return "COLLADA 1.4.x DAE reader/writer"; }
 
     bool acceptsExtension(const std::string& extension) const
@@ -41,6 +53,11 @@ public:
     ReadResult readNode(const std::string&, const Options*) const;
 
     WriteResult writeNode(const osg::Node&, const std::string&, const Options*) const;
+  
+private:
+
+    DAE *dae_;
+  
 };
 
 ///////////////////////////////////////////////////////////////////////////
@@ -57,7 +74,7 @@ ReaderWriterDAE::readNode(const std::string& fname,
 
     osg::notify(osg::INFO) << "ReaderWriterDAE( \"" << fileName << "\" )" << std::endl;
 
-    osgdae::daeReader daeReader;
+    osgdae::daeReader daeReader(dae_);
     std::string fileURI( osgDB::convertFileNameToUnixStyle(fileName) );
     if ( ! daeReader.convert( fileURI ) )
     {
@@ -100,7 +117,7 @@ ReaderWriterDAE::writeNode( const osg::Node& node,
       }
     }
     
-    osgdae::daeWriter daeWriter( fname, usePolygon );
+    osgdae::daeWriter daeWriter(dae_, fname, usePolygon );
     daeWriter.setRootNode( node );
     const_cast<osg::Node*>(&node)->accept( daeWriter );
 
diff --git a/src/osgPlugins/dae/daeReader.cpp b/src/osgPlugins/dae/daeReader.cpp
index 9ae993447..0ea223c43 100644
--- a/src/osgPlugins/dae/daeReader.cpp
+++ b/src/osgPlugins/dae/daeReader.cpp
@@ -18,21 +18,17 @@
 
 using namespace osgdae;
 
-daeReader::daeReader()
+daeReader::daeReader(DAE *dae_) : dae(dae_),
+				  rootNode(NULL),
+				  m_numlights(0),
+				  currentEffect(NULL),
+				  geometryMap(),
+				  materialMap()
 {
-    dae = new DAE;
-    m_numlights = 0;
-    currentEffect = NULL;
 }
 
 daeReader::~daeReader()
 {
-    if ( dae )
-    {
-        delete dae;
-        DAE::cleanup();
-        dae = NULL;
-    }
 }
 
 bool daeReader::convert( const std::string &fileURI ) 
@@ -70,9 +66,6 @@ bool daeReader::convert( const std::string &fileURI )
     }
     rootNode = processVisualScene( vs );
 
-    delete dae;
-    DAE::cleanup();
-    dae = NULL;
     return true;
 }
 
diff --git a/src/osgPlugins/dae/daeReader.h b/src/osgPlugins/dae/daeReader.h
index b5c9621cc..fe5bd7198 100644
--- a/src/osgPlugins/dae/daeReader.h
+++ b/src/osgPlugins/dae/daeReader.h
@@ -101,7 +101,7 @@ bool findInputSourceBySemantic( TInputArray& inputs, const char* semantic, daeEl
 */ 
 class daeReader {
 public:
-    daeReader();
+    daeReader(DAE *dae_);
     virtual ~daeReader();
 
     bool convert( const std::string &fileURI );
diff --git a/src/osgPlugins/dae/daeWriter.cpp b/src/osgPlugins/dae/daeWriter.cpp
index c5519de91..f3fc4bb1a 100644
--- a/src/osgPlugins/dae/daeWriter.cpp
+++ b/src/osgPlugins/dae/daeWriter.cpp
@@ -22,12 +22,12 @@
 
 using namespace osgdae;
 
-daeWriter::daeWriter( const std::string &fname,bool _usePolygons ) : osg::NodeVisitor( TRAVERSE_ALL_CHILDREN ),
-usePolygons (_usePolygons) 
+daeWriter::daeWriter( DAE *dae_, const std::string &fname,bool _usePolygons ) : osg::NodeVisitor( TRAVERSE_ALL_CHILDREN ),
+										dae(dae_),
+										usePolygons (_usePolygons) 
 {
     success = true;
 
-    dae = new DAE();
     dae->setDatabase( NULL );
     dae->setIOPlugin( NULL );
     //create document
@@ -58,12 +58,6 @@ usePolygons (_usePolygons)
 
 daeWriter::~daeWriter()
 {
-    if ( dae != NULL )
-    {
-        delete dae;
-        DAE::cleanup();
-        dae = 0;
-    }
 }
 
 void daeWriter::debugPrint( osg::Node &node )
diff --git a/src/osgPlugins/dae/daeWriter.h b/src/osgPlugins/dae/daeWriter.h
index e873cbca3..d8752cfdf 100644
--- a/src/osgPlugins/dae/daeWriter.h
+++ b/src/osgPlugins/dae/daeWriter.h
@@ -74,7 +74,7 @@ protected:
 public:
     enum NodeType { NODE, GEODE, GROUP, LIGHT, CAMERA, MATRIX, POSATT, SWITCH, LOD };
 
-        daeWriter( const std::string &fname, bool usePolygons=false );
+    daeWriter( DAE *dae_, const std::string &fname, bool usePolygons=false );
     virtual ~daeWriter();
 
     void setRootNode( const osg::Node &node );