diff --git a/LEGO1/mxdiskstreamcontroller.cpp b/LEGO1/mxdiskstreamcontroller.cpp
index 9e37edc4..0c74c3a7 100644
--- a/LEGO1/mxdiskstreamcontroller.cpp
+++ b/LEGO1/mxdiskstreamcontroller.cpp
@@ -16,6 +16,52 @@ MxDiskStreamController::~MxDiskStreamController()
 MxResult MxDiskStreamController::Tickle()
 {
   // TODO
-
   return 0;
 }
+
+// OFFSET: LEGO1 0x100c7790 STUB
+MxResult MxDiskStreamController::Open(const char *p_filename)
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100c7880
+MxResult MxDiskStreamController::vtable0x18(undefined4 p_unknown, undefined4 p_unknown2)
+{
+  return SUCCESS;
+}
+
+// OFFSET: LEGO1 0x100c7ff0 STUB
+MxResult MxDiskStreamController::vtable0x20(MxDSAction* p_action)
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100c8160 STUB
+MxResult MxDiskStreamController::vtable0x24(undefined4 p_unknown)
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100c7ac0 STUB
+MxResult MxDiskStreamController::vtable0x28()
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100c7c00 STUB
+MxResult MxDiskStreamController::vtable0x30(undefined4 p_unknown)
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100c7960
+MxResult MxDiskStreamController::vtable0x34(undefined4 p_unknown)
+{
+  return FAILURE;
+}
diff --git a/LEGO1/mxdiskstreamcontroller.h b/LEGO1/mxdiskstreamcontroller.h
index 1f66984c..5457a9b5 100644
--- a/LEGO1/mxdiskstreamcontroller.h
+++ b/LEGO1/mxdiskstreamcontroller.h
@@ -15,6 +15,13 @@ class MxDiskStreamController : public MxStreamController
   virtual ~MxDiskStreamController() override;
 
   virtual MxResult Tickle() override; // vtable+0x8
+  virtual MxResult Open(const char *p_filename) override; // vtable+0x14
+  virtual MxResult vtable0x18(undefined4 p_unknown, undefined4 p_unknown2) override; //vtable+0x18
+  virtual MxResult vtable0x20(MxDSAction* p_action) override; //vtable+0x20
+  virtual MxResult vtable0x24(undefined4 p_unknown) override; //vtable+0x24
+  virtual MxResult vtable0x28() override; //vtable+0x28
+  virtual MxResult vtable0x30(undefined4 p_unknown) override; //vtable+0x30
+  virtual MxResult vtable0x34(undefined4 p_unknown); //vtable+0x34
 
   // OFFSET: LEGO1 0x100c7360
   inline virtual const char *ClassName() const override // vtable+0x0c
diff --git a/LEGO1/mxdiskstreamprovider.cpp b/LEGO1/mxdiskstreamprovider.cpp
index 4dcb02cf..9555a8cf 100644
--- a/LEGO1/mxdiskstreamprovider.cpp
+++ b/LEGO1/mxdiskstreamprovider.cpp
@@ -45,4 +45,41 @@ MxResult MxDiskStreamProvider::WaitForWorkToComplete()
 void MxDiskStreamProvider::PerformWork()
 {
   // TODO
-}
\ No newline at end of file
+}
+
+// OFFSET: LEGO1 0x100d13d0 STUB
+MxResult MxDiskStreamProvider::SetResourceToGet(void* p_resource)
+{
+  // TODO
+  return FAILURE;
+}
+
+// OFFSET: LEGO1 0x100d1e90
+MxU32 MxDiskStreamProvider::GetFileSize()
+{
+  return m_pFile->GetBufferSize();
+}
+
+// OFFSET: LEGO1 0x100d1ea0
+MxU32 MxDiskStreamProvider::GetStreamBuffersNum()
+{
+  return m_pFile->GetStreamBuffersNum();
+}
+
+// OFFSET: LEGO1 0x100d15e0 STUB
+void MxDiskStreamProvider::vtable0x20(undefined4 p_unknown1)
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x100d1eb0
+MxU32 MxDiskStreamProvider::GetLengthInDWords()
+{
+  return m_pFile->GetLengthInDWords();
+}
+
+// OFFSET: LEGO1 0x100d1ec0
+MxU32* MxDiskStreamProvider::GetBufferForDWords()
+{
+  return m_pFile->GetBuffer();
+}
diff --git a/LEGO1/mxdiskstreamprovider.h b/LEGO1/mxdiskstreamprovider.h
index c797a0de..c35826b8 100644
--- a/LEGO1/mxdiskstreamprovider.h
+++ b/LEGO1/mxdiskstreamprovider.h
@@ -49,6 +49,13 @@ class MxDiskStreamProvider : public MxStreamProvider
 
   void PerformWork();
 
+  virtual MxResult SetResourceToGet(void* p_resource) override; //vtable+0x14
+  virtual MxU32 GetFileSize() override; //vtable+0x18
+  virtual MxU32 GetStreamBuffersNum() override; //vtable+0x1c
+  virtual void vtable0x20(undefined4 p_unknown1) override; //vtable+0x20
+  virtual MxU32 GetLengthInDWords() override; //vtable+0x24
+  virtual MxU32* GetBufferForDWords()override; //vtable+0x28
+
 private:
   MxDiskStreamProviderThread m_thread; // 0x10
   MxSemaphore m_busySemaphore; // 0x2c
diff --git a/LEGO1/mxdsfile.cpp b/LEGO1/mxdsfile.cpp
index ca6e96fb..d1c87032 100644
--- a/LEGO1/mxdsfile.cpp
+++ b/LEGO1/mxdsfile.cpp
@@ -81,7 +81,7 @@ MxLong MxDSFile::ReadChunks()
     }
     MxULong* pLengthInDWords = &m_lengthInDWords;
     m_io.Read(pLengthInDWords, 4);
-    m_pBuffer = malloc(*pLengthInDWords * 4);
+    m_pBuffer = new MxU32[*pLengthInDWords];
     m_io.Read(m_pBuffer, *pLengthInDWords * 4);
     return 0;
   }
@@ -120,7 +120,7 @@ MxLong MxDSFile::Close()
   if (m_lengthInDWords != 0)
   {
     m_lengthInDWords = 0;
-    free(m_pBuffer);
+    delete[] m_pBuffer;
     m_pBuffer = NULL;
   }
   return 0;
diff --git a/LEGO1/mxdssource.cpp b/LEGO1/mxdssource.cpp
index 4dfb5386..86c4f9fb 100644
--- a/LEGO1/mxdssource.cpp
+++ b/LEGO1/mxdssource.cpp
@@ -14,7 +14,7 @@ MxLong MxDSSource::GetLengthInDWords()
 }
 
 // OFFSET: LEGO1 0x100c0000
-void *MxDSSource::GetBuffer()
+MxU32 *MxDSSource::GetBuffer()
 {
   return m_pBuffer;
 }
\ No newline at end of file
diff --git a/LEGO1/mxdssource.h b/LEGO1/mxdssource.h
index 67cbc6c7..626eaf37 100644
--- a/LEGO1/mxdssource.h
+++ b/LEGO1/mxdssource.h
@@ -34,11 +34,11 @@ class MxDSSource : public MxCore
   virtual MxULong GetBufferSize() = 0;
   virtual MxULong GetStreamBuffersNum() = 0;
   virtual MxLong GetLengthInDWords();
-  virtual void* GetBuffer(); // 0x34
+  virtual MxU32* GetBuffer(); // 0x34
 
 protected:
   MxULong m_lengthInDWords;
-  void* m_pBuffer;
+  MxU32* m_pBuffer;
   MxLong m_position;
 };
 
diff --git a/LEGO1/mxramstreamprovider.cpp b/LEGO1/mxramstreamprovider.cpp
index 9b052699..1b44d84f 100644
--- a/LEGO1/mxramstreamprovider.cpp
+++ b/LEGO1/mxramstreamprovider.cpp
@@ -41,7 +41,7 @@ MxU32 MxRAMStreamProvider::GetFileSize()
 }
 
 // OFFSET: LEGO1 0x100d0940
-MxU32 MxRAMStreamProvider::vtable0x1C()
+MxU32 MxRAMStreamProvider::GetStreamBuffersNum()
 {
   return 1;
 }
@@ -53,7 +53,7 @@ MxU32 MxRAMStreamProvider::GetLengthInDWords()
 }
 
 // OFFSET: LEGO1 0x100d0960
-void* MxRAMStreamProvider::GetBufferForDWords()
+MxU32* MxRAMStreamProvider::GetBufferForDWords()
 {
   return m_bufferForDWords;
 }
diff --git a/LEGO1/mxramstreamprovider.h b/LEGO1/mxramstreamprovider.h
index 4a22b013..48e0dcae 100644
--- a/LEGO1/mxramstreamprovider.h
+++ b/LEGO1/mxramstreamprovider.h
@@ -9,19 +9,19 @@ class MxRAMStreamProvider : public MxStreamProvider
 public:
   MxRAMStreamProvider();
   virtual ~MxRAMStreamProvider() override;
-  
+
   virtual MxResult SetResourceToGet(void* p_resource) override; //vtable+0x14
   virtual MxU32 GetFileSize() override; //vtable+0x18
-  virtual MxU32 vtable0x1C() override; //vtable+0x1c
+  virtual MxU32 GetStreamBuffersNum() override; //vtable+0x1c
   virtual MxU32 GetLengthInDWords() override; //vtable+0x24
-  virtual void* GetBufferForDWords() override; //vtable+0x28
+  virtual MxU32* GetBufferForDWords() override; //vtable+0x28
 
 protected:
   MxU32 m_bufferSize;
   MxU32 m_fileSize;
   void* m_pBufferOfFileSize;
   MxU32 m_lengthInDWords;
-  void* m_bufferForDWords;
+  MxU32* m_bufferForDWords;
 };
 
 #endif // MXRAMSTREAMPROVIDER_H
diff --git a/LEGO1/mxstreamcontroller.cpp b/LEGO1/mxstreamcontroller.cpp
index 36b85ebc..89b2fa51 100644
--- a/LEGO1/mxstreamcontroller.cpp
+++ b/LEGO1/mxstreamcontroller.cpp
@@ -45,11 +45,26 @@ MxResult MxStreamController::vtable0x1C(undefined4 p_unknown, undefined4 p_unkno
   return FAILURE;
 }
 
-// OFFSET: LEGO1 0x100c1690 STUB
+// OFFSET: LEGO1 0x100c1690
 MxResult MxStreamController::vtable0x20(MxDSAction* p_action)
 {
-  // TODO STUB
-  return FAILURE;
+  MxAutoLocker locker(&m_criticalSection);
+
+  MxResult result;
+  MxU32 offset = 0;
+
+  MxS32 objectId = p_action->GetObjectId();
+  MxStreamProvider *provider = m_provider;
+
+  if ((MxS32) provider->GetLengthInDWords() > objectId)
+    offset = provider->GetBufferForDWords()[objectId];
+
+  if (offset)
+    result = vtable0x2c(p_action, offset);
+  else
+    result = FAILURE;
+
+  return result;
 }
 
 // OFFSET: LEGO1 0x100c1740 STUB
@@ -66,7 +81,7 @@ MxResult MxStreamController::vtable0x28()
 }
 
 // OFFSET: LEGO1 0x100c1c10 STUB
-MxResult MxStreamController::vtable0x2c(undefined4 p_unknown1, undefined4 p_unknow2)
+MxResult MxStreamController::vtable0x2c(MxDSAction* p_action, MxU32 p_bufferval)
 {
   return FAILURE;
 }
diff --git a/LEGO1/mxstreamcontroller.h b/LEGO1/mxstreamcontroller.h
index 59490d2c..539af0bd 100644
--- a/LEGO1/mxstreamcontroller.h
+++ b/LEGO1/mxstreamcontroller.h
@@ -7,6 +7,7 @@
 #include "mxcore.h"
 #include "mxdsobject.h"
 #include "mxdsaction.h"
+#include "mxstreamprovider.h"
 
 // VTABLE 0x100dc968
 // SIZE 0x64
@@ -36,7 +37,7 @@ class MxStreamController : public MxCore
   virtual MxResult vtable0x20(MxDSAction* p_action); //vtable+0x20
   virtual MxResult vtable0x24(undefined4 p_unknown); //vtable+0x24
   virtual MxResult vtable0x28(); //vtable+0x28
-  virtual MxResult vtable0x2c(undefined4 p_unknown1, undefined4 p_unknow2); //vtable+0x2c
+  virtual MxResult vtable0x2c(MxDSAction* p_action, MxU32 p_bufferval); //vtable+0x2c
   virtual MxResult vtable0x30(undefined4 p_unknown); //vtable+0x30
 
   MxBool FUN_100c20d0(MxDSObject &p_obj);
@@ -45,7 +46,7 @@ class MxStreamController : public MxCore
 protected:
   MxCriticalSection m_criticalSection;
   MxAtomId atom;
-  undefined4 m_unk28; // MxStreamProvider*
+  MxStreamProvider* m_provider; // MxStreamProvider*
   undefined4 m_unk2c;
   undefined m_unk30[0x34];
 };
diff --git a/LEGO1/mxstreamprovider.h b/LEGO1/mxstreamprovider.h
index 3cb11144..fb210f80 100644
--- a/LEGO1/mxstreamprovider.h
+++ b/LEGO1/mxstreamprovider.h
@@ -26,10 +26,10 @@ class MxStreamProvider : public MxCore
 
   virtual MxResult SetResourceToGet(void* p_resource); //vtable+0x14
   virtual MxU32 GetFileSize() = 0; //vtable+0x18
-  virtual MxU32 vtable0x1C() = 0; //vtable+0x1c
+  virtual MxU32 GetStreamBuffersNum() = 0; //vtable+0x1c
   virtual void vtable0x20(undefined4 p_unknown1); //vtable+0x20
   virtual MxU32 GetLengthInDWords() = 0; //vtable+0x24
-  virtual void* GetBufferForDWords() = 0; //vtable+0x28
+  virtual MxU32* GetBufferForDWords() = 0; //vtable+0x28
 
 protected:
   void *m_pLookup;