diff --git a/LEGO1/mxcompositemediapresenter.cpp b/LEGO1/mxcompositemediapresenter.cpp
index 7bbaf6bf..01a6e135 100644
--- a/LEGO1/mxcompositemediapresenter.cpp
+++ b/LEGO1/mxcompositemediapresenter.cpp
@@ -1,7 +1,47 @@
 #include "mxcompositemediapresenter.h"
 
-// STUB: LEGO1 0x10073ea0
+#include "legoomni.h"
+#include "legovideomanager.h"
+
+DECOMP_SIZE_ASSERT(MxCompositeMediaPresenter, 0x50)
+
+// FUNCTION: LEGO1 0x10073ea0
 MxCompositeMediaPresenter::MxCompositeMediaPresenter()
+{
+	m_unk0x4c = 0;
+	m_unk0x4e = 0;
+	VideoManager()->AddPresenter(*this);
+}
+
+// FUNCTION: LEGO1 0x10074020
+MxCompositeMediaPresenter::~MxCompositeMediaPresenter()
+{
+	VideoManager()->RemovePresenter(*this);
+}
+
+// STUB: LEGO1 0x10074090
+MxResult MxCompositeMediaPresenter::StartAction(MxStreamController* p_controller, MxDSAction* p_action)
+{
+	// TODO
+	return SUCCESS;
+}
+
+// STUB: LEGO1 0x100742e0
+void MxCompositeMediaPresenter::StartingTickle()
 {
 	// TODO
 }
+
+// STUB: LEGO1 0x10074470
+MxResult MxCompositeMediaPresenter::Tickle()
+{
+	// TODO
+	return SUCCESS;
+}
+
+// STUB: LEGO1 0x10074540
+MxResult MxCompositeMediaPresenter::PutData()
+{
+	// TODO
+	return SUCCESS;
+}
diff --git a/LEGO1/mxcompositemediapresenter.h b/LEGO1/mxcompositemediapresenter.h
index 80126469..f28465f2 100644
--- a/LEGO1/mxcompositemediapresenter.h
+++ b/LEGO1/mxcompositemediapresenter.h
@@ -3,11 +3,14 @@
 
 #include "mxcompositepresenter.h"
 
-// VTABLE: LEGO1 0x100dc618
+// VTABLE: LEGO1 0x100d96b0
 // SIZE 0x50
 class MxCompositeMediaPresenter : public MxCompositePresenter {
 public:
 	MxCompositeMediaPresenter();
+	virtual ~MxCompositeMediaPresenter() override;
+
+	virtual MxResult Tickle() override; // vtable+0x08
 
 	// FUNCTION: LEGO1 0x10073f10
 	inline virtual const char* ClassName() const override // vtable+0x0c
@@ -21,6 +24,17 @@ class MxCompositeMediaPresenter : public MxCompositePresenter {
 	{
 		return !strcmp(p_name, MxCompositeMediaPresenter::ClassName()) || MxCompositePresenter::IsA(p_name);
 	}
+
+	virtual void StartingTickle() override;                                           // vtable+0x1c
+	virtual MxResult StartAction(MxStreamController*, MxDSAction* p_action) override; // vtable+0x3c
+	virtual MxResult PutData();                                                       // vtable+0x4c
+
+private:
+	undefined2 m_unk0x4c; // 0x4c
+	undefined m_unk0x4e;  // 0x4e
 };
 
+// SYNTHETIC: LEGO1 0x10074000
+// MxCompositeMediaPresenter::`scalar deleting destructor'
+
 #endif // MXCOMPOSITEMEDIAPRESENTER_H