diff --git a/DOCUMENTATION.md b/DOCUMENTATION.md
index 519c3e21..c54cc6c4 100644
--- a/DOCUMENTATION.md
+++ b/DOCUMENTATION.md
@@ -2,7 +2,6 @@
 
 ## Nomenclature
 - **Script**: SI File (it appears they wanted to use SI much more as actual scripts, but ended up hard-coding almost everything)
-- **Action**: Mostly media file inside SI
 
 ## Core Concepts
 
@@ -38,7 +37,7 @@ IsA()
 Checks ALL parents.
 
 ### MxTickleManager : MxCore
-Holds a list of MxTickleClient*. Goes though the on Tickle() and calls Tickle() if interval time has passed.
+Holds a list of MxTickleClient*. Goes though them on Tickle() and calls Tickle() if interval time has passed.
 
 ### MxTickleClient
 Holds a MxCore*, Interval, LastUpdateTime and Flags (only used for TICKLE_MANAGER_FLAG_DESTROY?).
@@ -82,9 +81,20 @@ Then reads a list of strings (presumably numbers) into a list. Then reads the sa
 ### MxDSSound : MxDSMediaAction
 Deserializes a volume.
 
+### MxDSObjectAction : MxDSMediaAction
+Adds nothing.
+
 ### MxVariableTable : MxHashTable<MxVariable*>
 MxOmni holds a VariableTable that is just a key/value store string/string.
 
+### MxPresenter : MxCore
+Abstract base class for all presenters. Separates the tickle down to ReadyTickle(), StartingTickle(), StreamingTickle(), RepeatingTickle(), FreezingTickle() and DoneTickle()
+
+Similar to DeserializeDSObjectDispatch, there is a PresenterNameDispatch() that reads the media format (" FLC", " SMK", " MID", " WAV") and returns the corresponding HandlerClassName().
+
+### MxMediaPresenter : MxPresenter
+Hold a MxDSSubscriber* and reads data from it on the tickles.
+
 ### LegoBuildingManager : MxCore
 
 #### CreateBuilding()
diff --git a/LEGO1/lego/legoomni/include/legoanimationmanager.h b/LEGO1/lego/legoomni/include/legoanimationmanager.h
index f216ca30..a1cf9ce5 100644
--- a/LEGO1/lego/legoomni/include/legoanimationmanager.h
+++ b/LEGO1/lego/legoomni/include/legoanimationmanager.h
@@ -43,7 +43,7 @@ struct AnimInfo {
 	MxU8 m_modelCount;   // 0x20
 	MxU16 m_unk0x22;     // 0x22
 	ModelInfo* m_models; // 0x24
-	MxS8 m_unk0x28;      // 0x28
+	MxS8 m_characterIndex;      // 0x28
 	MxBool m_unk0x29;    // 0x29
 	MxS8 m_unk0x2a[3];   // 0x2a
 };
diff --git a/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp b/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
index 08f6abed..60584735 100644
--- a/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
+++ b/LEGO1/lego/legoomni/src/common/legoanimationmanager.cpp
@@ -679,7 +679,7 @@ MxResult LegoAnimationManager::LoadWorldInfo(LegoOmni::World p_worldId)
 				goto done;
 			}
 
-			m_anims[j].m_unk0x28 = GetCharacterIndex(m_anims[j].m_name + strlen(m_anims[j].m_name) - 2);
+			m_anims[j].m_characterIndex = GetCharacterIndex(m_anims[j].m_name + strlen(m_anims[j].m_name) - 2);
 			m_anims[j].m_unk0x29 = FALSE;
 
 			for (k = 0; k < 3; k++) {
@@ -1615,7 +1615,7 @@ MxU16 LegoAnimationManager::FUN_10062110(
 					MxS8 index = GetCharacterIndex(p_roi->GetName());
 
 					for (MxU16 i = m_unk0x0e; i <= m_unk0x10; i++) {
-						if (m_anims[i].m_unk0x28 == index && m_anims[i].m_unk0x0c & p_unk0x0c && m_anims[i].m_unk0x29) {
+						if (m_anims[i].m_characterIndex == index && m_anims[i].m_unk0x0c & p_unk0x0c && m_anims[i].m_unk0x29) {
 							MxS32 vehicleId = g_characters[index].m_vehicleId;
 							if (vehicleId >= 0) {
 								MxBool found = FALSE;
@@ -1636,7 +1636,7 @@ MxU16 LegoAnimationManager::FUN_10062110(
 							MxU16 unk0x22 = m_anims[i].m_unk0x22;
 
 							for (i = i + 1; i <= m_unk0x10; i++) {
-								if (m_anims[i].m_unk0x28 == index && m_anims[i].m_unk0x0c & p_unk0x0c &&
+								if (m_anims[i].m_characterIndex == index && m_anims[i].m_unk0x0c & p_unk0x0c &&
 									m_anims[i].m_unk0x29 && m_anims[i].m_unk0x22 < unk0x22) {
 									result = i;
 									unk0x22 = m_anims[i].m_unk0x22;
diff --git a/LEGO1/lego/legoomni/src/common/legoanimmmpresenter.cpp b/LEGO1/lego/legoomni/src/common/legoanimmmpresenter.cpp
index d579beb1..ec5f9ff9 100644
--- a/LEGO1/lego/legoomni/src/common/legoanimmmpresenter.cpp
+++ b/LEGO1/lego/legoomni/src/common/legoanimmmpresenter.cpp
@@ -400,7 +400,7 @@ MxBool LegoAnimMMPresenter::FUN_1004b610(MxLong p_time)
 		}
 	}
 
-	m_action->SetUnknown90(Timer()->GetTime());
+	m_action->SetStartTime(Timer()->GetTime());
 
 	if (m_compositePresenter != NULL) {
 		m_compositePresenter->VTable0x60(this);
diff --git a/LEGO1/lego/legoomni/src/common/mxcompositemediapresenter.cpp b/LEGO1/lego/legoomni/src/common/mxcompositemediapresenter.cpp
index dadd8de7..57fe91ec 100644
--- a/LEGO1/lego/legoomni/src/common/mxcompositemediapresenter.cpp
+++ b/LEGO1/lego/legoomni/src/common/mxcompositemediapresenter.cpp
@@ -84,7 +84,7 @@ MxResult MxCompositeMediaPresenter::StartAction(MxStreamController* p_controller
 		if (!m_compositePresenter) {
 			SetTickleState(e_ready);
 			MxLong time = Timer()->GetTime();
-			m_action->SetUnknown90(time);
+			m_action->SetStartTime(time);
 		}
 
 		result = SUCCESS;
@@ -134,7 +134,7 @@ void MxCompositeMediaPresenter::StartingTickle()
 		if (!m_unk0x4c) {
 			ProgressTickleState(e_streaming);
 			MxLong time = Timer()->GetTime();
-			m_action->SetUnknown90(time);
+			m_action->SetStartTime(time);
 		}
 	}
 }
diff --git a/LEGO1/lego/legoomni/src/common/mxcontrolpresenter.cpp b/LEGO1/lego/legoomni/src/common/mxcontrolpresenter.cpp
index 17beb3c1..bccca8b8 100644
--- a/LEGO1/lego/legoomni/src/common/mxcontrolpresenter.cpp
+++ b/LEGO1/lego/legoomni/src/common/mxcontrolpresenter.cpp
@@ -189,7 +189,7 @@ void MxControlPresenter::VTable0x6c(MxS16 p_unk0x4e)
 		m_unk0x4e = p_unk0x4e;
 	}
 
-	m_action->SetUnknown90(Timer()->GetTime());
+	m_action->SetStartTime(Timer()->GetTime());
 
 	MxS16 i = 0;
 	for (MxCompositePresenterList::iterator it = m_list.begin(); it != m_list.end(); it++) {
diff --git a/LEGO1/lego/legoomni/src/video/legoanimpresenter.cpp b/LEGO1/lego/legoomni/src/video/legoanimpresenter.cpp
index e20ca985..9c259ea5 100644
--- a/LEGO1/lego/legoomni/src/video/legoanimpresenter.cpp
+++ b/LEGO1/lego/legoomni/src/video/legoanimpresenter.cpp
@@ -815,7 +815,7 @@ void LegoAnimPresenter::StartingTickle()
 		m_compositePresenter->VTable0x60(this);
 	}
 	else {
-		m_action->SetUnknown90(Timer()->GetTime());
+		m_action->SetStartTime(Timer()->GetTime());
 	}
 
 	ProgressTickleState(e_streaming);
diff --git a/LEGO1/omni/include/mxdsaction.h b/LEGO1/omni/include/mxdsaction.h
index 1597038e..05b358e3 100644
--- a/LEGO1/omni/include/mxdsaction.h
+++ b/LEGO1/omni/include/mxdsaction.h
@@ -55,8 +55,8 @@ class MxDSAction : public MxDSObject {
 	virtual MxDSAction* Clone();                                 // vtable+0x2c
 	virtual void MergeFrom(MxDSAction& p_dsAction);              // vtable+0x30
 	virtual MxBool HasId(MxU32 p_objectId);                      // vtable+0x34
-	virtual void SetUnknown90(MxLong p_unk0x90);                 // vtable+0x38
-	virtual MxLong GetUnknown90();                               // vtable+0x3c
+	virtual void SetStartTime(MxLong p_unk0x90);                 // vtable+0x38
+	virtual MxLong GetStartTIme();                               // vtable+0x3c
 	virtual MxLong GetElapsedTime();                             // vtable+0x40
 
 	void AppendExtra(MxU16 p_extraLength, const char* p_extraData);
@@ -130,7 +130,7 @@ class MxDSAction : public MxDSObject {
 	MxCore* m_unk0x84;          // 0x84
 	undefined4 m_unk0x88;       // 0x88
 	MxCore* m_origin;           // 0x8c
-	MxLong m_unk0x90;           // 0x90
+	MxLong m_startTime;           // 0x90
 };
 
 #endif // MXDSACTION_H
diff --git a/LEGO1/omni/include/mxdsmultiaction.h b/LEGO1/omni/include/mxdsmultiaction.h
index 90cc5192..80951673 100644
--- a/LEGO1/omni/include/mxdsmultiaction.h
+++ b/LEGO1/omni/include/mxdsmultiaction.h
@@ -38,7 +38,7 @@ class MxDSMultiAction : public MxDSAction {
 	MxDSAction* Clone() override;                                // vtable+0x2c
 	void MergeFrom(MxDSAction& p_dsAction) override;             // vtable+0x30
 	MxBool HasId(MxU32 p_objectId) override;                     // vtable+0x34
-	void SetUnknown90(MxLong p_unk0x90) override;                // vtable+0x38
+	void SetStartTime(MxLong p_unk0x90) override;                // vtable+0x38
 
 	// FUNCTION: BETA10 0x1004e180
 	MxDSActionList* GetActionList() const { return m_actionList; }
diff --git a/LEGO1/omni/src/action/mxdsaction.cpp b/LEGO1/omni/src/action/mxdsaction.cpp
index eeb3dc68..b5fa8ee2 100644
--- a/LEGO1/omni/src/action/mxdsaction.cpp
+++ b/LEGO1/omni/src/action/mxdsaction.cpp
@@ -31,7 +31,7 @@ MxDSAction::MxDSAction()
 	m_unk0x84 = NULL;
 	m_unk0x88 = 0;
 	m_origin = NULL;
-	m_unk0x90 = INT_MIN;
+	m_startTime = INT_MIN;
 }
 
 // FUNCTION: LEGO1 0x100ad940
@@ -57,16 +57,16 @@ MxBool MxDSAction::HasId(MxU32 p_objectId)
 
 // FUNCTION: LEGO1 0x100ada40
 // FUNCTION: BETA10 0x1012bdf0
-void MxDSAction::SetUnknown90(MxLong p_unk0x90)
+void MxDSAction::SetStartTime(MxLong p_startTime)
 {
-	m_unk0x90 = p_unk0x90;
+	m_startTime = p_startTime;
 }
 
 // FUNCTION: LEGO1 0x100ada50
 // FUNCTION: BETA10 0x1012be20
-MxLong MxDSAction::GetUnknown90()
+MxLong MxDSAction::GetStartTIme()
 {
-	return m_unk0x90;
+	return m_startTime;
 }
 
 // FUNCTION: LEGO1 0x100ada80
@@ -92,7 +92,7 @@ void MxDSAction::CopyFrom(MxDSAction& p_dsAction)
 	m_unk0x84 = p_dsAction.m_unk0x84;
 	m_unk0x88 = p_dsAction.m_unk0x88;
 	m_origin = p_dsAction.m_origin;
-	m_unk0x90 = p_dsAction.m_unk0x90;
+	m_startTime = p_dsAction.m_startTime;
 }
 
 // FUNCTION: BETA10 0x1012b2b3
@@ -158,7 +158,7 @@ MxDSAction* MxDSAction::Clone()
 // FUNCTION: BETA10 0x1012b4ca
 MxLong MxDSAction::GetElapsedTime()
 {
-	return Timer()->GetTime() - m_unk0x90;
+	return Timer()->GetTime() - m_startTime;
 }
 
 // FUNCTION: LEGO1 0x100add00
diff --git a/LEGO1/omni/src/action/mxdsmultiaction.cpp b/LEGO1/omni/src/action/mxdsmultiaction.cpp
index 579b7937..9585b587 100644
--- a/LEGO1/omni/src/action/mxdsmultiaction.cpp
+++ b/LEGO1/omni/src/action/mxdsmultiaction.cpp
@@ -57,14 +57,14 @@ MxDSMultiAction& MxDSMultiAction::operator=(MxDSMultiAction& p_dsMultiAction)
 
 // FUNCTION: LEGO1 0x100ca290
 // FUNCTION: BETA10 0x10159728
-void MxDSMultiAction::SetUnknown90(MxLong p_unk0x90)
+void MxDSMultiAction::SetStartTime(MxLong p_unk0x90)
 {
-	m_unk0x90 = p_unk0x90;
+	m_startTime = p_unk0x90;
 
 	MxDSActionListCursor cursor(m_actionList);
 	MxDSAction* action;
 	while (cursor.Next(action)) {
-		action->SetUnknown90(p_unk0x90);
+		action->SetStartTime(p_unk0x90);
 	}
 }
 
diff --git a/LEGO1/omni/src/common/mxmediapresenter.cpp b/LEGO1/omni/src/common/mxmediapresenter.cpp
index 3c81c0e7..bbd39901 100644
--- a/LEGO1/omni/src/common/mxmediapresenter.cpp
+++ b/LEGO1/omni/src/common/mxmediapresenter.cpp
@@ -252,7 +252,7 @@ void MxMediaPresenter::Enable(MxBool p_enable)
 
 		if (p_enable) {
 			MxLong time = Timer()->GetTime();
-			m_action->SetUnknown90(time);
+			m_action->SetStartTime(time);
 			SetTickleState(e_repeating);
 		}
 		else {
diff --git a/LEGO1/omni/src/stream/mxdsbuffer.cpp b/LEGO1/omni/src/stream/mxdsbuffer.cpp
index 734df8d8..f2211ef9 100644
--- a/LEGO1/omni/src/stream/mxdsbuffer.cpp
+++ b/LEGO1/omni/src/stream/mxdsbuffer.cpp
@@ -209,7 +209,7 @@ MxResult MxDSBuffer::StartPresenterFromAction(
 		p_objectheader->SetUnknown28(p_action1->GetUnknown28());
 		p_objectheader->SetUnknown84(p_action1->GetUnknown84());
 		p_objectheader->SetOrigin(p_action1->GetOrigin());
-		p_objectheader->SetUnknown90(p_action1->GetUnknown90());
+		p_objectheader->SetStartTime(p_action1->GetStartTIme());
 		p_objectheader->MergeFrom(*p_action1);
 
 		m_unk0x30->SetInternalAction(p_objectheader->Clone());
diff --git a/LEGO1/omni/src/stream/mxstreamcontroller.cpp b/LEGO1/omni/src/stream/mxstreamcontroller.cpp
index 83ea6951..41258578 100644
--- a/LEGO1/omni/src/stream/mxstreamcontroller.cpp
+++ b/LEGO1/omni/src/stream/mxstreamcontroller.cpp
@@ -202,7 +202,7 @@ MxResult MxStreamController::FUN_100c1a00(MxDSAction* p_action, MxU32 p_offset)
 	streamingAction->SetObjectId(p_action->GetObjectId());
 
 	MxLong time = Timer()->GetTime();
-	streamingAction->SetUnknown90(time);
+	streamingAction->SetStartTime(time);
 
 	m_unk0x3c.PushBack(streamingAction);
 	return SUCCESS;