diff --git a/LEGO1/mxdiskstreamcontroller.cpp b/LEGO1/mxdiskstreamcontroller.cpp
index b9acfb9d..285b94e7 100644
--- a/LEGO1/mxdiskstreamcontroller.cpp
+++ b/LEGO1/mxdiskstreamcontroller.cpp
@@ -2,6 +2,7 @@
 
 #include "mxautolocker.h"
 #include "mxdiskstreamprovider.h"
+#include "mxdsstreamingaction.h"
 #include "mxomni.h"
 #include "mxticklemanager.h"
 
@@ -71,11 +72,40 @@ MxResult MxDiskStreamController::VTable0x30(MxDSAction* p_action)
 	return FAILURE;
 }
 
-// STUB: LEGO1 0x100c7ff0
+// FUNCTION: LEGO1 0x100c7f40
+void MxDiskStreamController::FUN_100c7f40(MxDSStreamingAction* p_streamingaction)
+{
+	MxAutoLocker lock(&this->m_criticalSection);
+	if (p_streamingaction) {
+		m_list0x64.push_back(p_streamingaction);
+	}
+}
+
+// FUNCTION: LEGO1 0x100c7ff0
 MxResult MxDiskStreamController::VTable0x20(MxDSAction* p_action)
 {
-	// TODO
-	return FAILURE;
+	MxAutoLocker lock(&this->m_criticalSection);
+	MxDSStreamingAction* entry =
+		(MxDSStreamingAction*) m_list0x80.Find(p_action, FALSE); // TODO: is this a seperate class?
+
+	if (entry) {
+		MxDSStreamingAction* action = new MxDSStreamingAction(*p_action, 0);
+		action->SetUnknown28(entry->GetUnknown28());
+		action->SetUnknown84(entry->GetUnknown84());
+		action->SetOrigin(entry->GetOrigin());
+		action->SetUnknowna0(entry->GetUnknowna4());
+
+		FUN_100c7f40(action);
+
+		if (VTable0x2c(p_action, entry->GetUnknown94()) != SUCCESS)
+			return FAILURE;
+	}
+	else if (MxStreamController::VTable0x20(p_action) != SUCCESS)
+		return FAILURE;
+
+	m_unk0x70 = 1;
+	m_unk0xc4 = 1;
+	return SUCCESS;
 }
 
 // STUB: LEGO1 0x100c8160
diff --git a/LEGO1/mxdiskstreamcontroller.h b/LEGO1/mxdiskstreamcontroller.h
index 2e320fa0..e77c75db 100644
--- a/LEGO1/mxdiskstreamcontroller.h
+++ b/LEGO1/mxdiskstreamcontroller.h
@@ -3,6 +3,7 @@
 
 #include "decomp.h"
 #include "mxdsbuffer.h"
+#include "mxdsstreamingaction.h"
 #include "mxstl/stlcompat.h"
 #include "mxstreamcontroller.h"
 #include "mxtypes.h"
@@ -48,6 +49,8 @@ class MxDiskStreamController : public MxStreamController {
 	MxCriticalSection m_critical9c;    // 0x9c
 	MxStreamListMxDSAction m_list0xb8; // 0xb8
 	undefined m_unk0xc4;               // 0xc4
+
+	void FUN_100c7f40(MxDSStreamingAction* p_streamingaction);
 };
 
 // TEMPLATE: LEGO1 0x100c7330
diff --git a/LEGO1/mxdsaction.h b/LEGO1/mxdsaction.h
index 94421b1f..6ea57a4a 100644
--- a/LEGO1/mxdsaction.h
+++ b/LEGO1/mxdsaction.h
@@ -63,6 +63,7 @@ class MxDSAction : public MxDSObject {
 	inline MxS32 GetLoopCount() { return m_loopCount; }
 	inline void SetLoopCount(MxS32 p_loopCount) { m_loopCount = p_loopCount; }
 	inline const Vector3Data& GetLocation() const { return m_location; }
+	inline MxCore* GetUnknown84() { return m_unk0x84; }
 	inline void SetUnknown84(MxCore* p_unk0x84) { m_unk0x84 = p_unk0x84; }
 	inline MxCore* GetOrigin() { return m_origin; }
 	inline void SetOrigin(MxCore* p_origin) { m_origin = p_origin; }
diff --git a/LEGO1/mxdsobject.h b/LEGO1/mxdsobject.h
index 3f47f13e..dfa967cf 100644
--- a/LEGO1/mxdsobject.h
+++ b/LEGO1/mxdsobject.h
@@ -38,10 +38,12 @@ class MxDSObject : public MxCore {
 	inline MxU32 GetObjectId() { return this->m_objectId; }
 	inline const MxAtomId& GetAtomId() { return this->m_atomId; }
 	inline MxS16 GetUnknown24() { return this->m_unk0x24; }
+	inline undefined4 GetUnknown28() { return this->m_unk0x28; }
 
 	inline void SetType(MxDSType p_type) { this->m_type = p_type; }
 	inline void SetObjectId(MxU32 p_objectId) { this->m_objectId = p_objectId; }
 	inline void SetUnknown24(MxS16 p_unk0x24) { this->m_unk0x24 = p_unk0x24; }
+	inline void SetUnknown28(undefined4 p_unk0x28) { this->m_unk0x28 = p_unk0x28; }
 
 private:
 	MxU32 m_sizeOnDisk;   // 0x8
diff --git a/LEGO1/mxdsstreamingaction.h b/LEGO1/mxdsstreamingaction.h
index 63c22b8d..4e5f0979 100644
--- a/LEGO1/mxdsstreamingaction.h
+++ b/LEGO1/mxdsstreamingaction.h
@@ -31,6 +31,11 @@ class MxDSStreamingAction : public MxDSAction {
 	void SetInternalAction(MxDSAction* p_dsAction);
 	void FUN_100cd2d0();
 
+	inline MxU32 GetUnknown94() { return m_unk0x94; }
+	inline MxDSBuffer* GetUnknowna0() { return m_unk0xa0; }
+	inline MxDSBuffer* GetUnknowna4() { return m_unk0xa4; }
+	inline void SetUnknowna0(MxDSBuffer* p_unk0xa0) { m_unk0xa0 = p_unk0xa0; }
+
 private:
 	MxU32 m_unk0x94;
 	MxU32 m_bufferOffset;