diff --git a/stepmania/src/HighScore.cpp b/stepmania/src/HighScore.cpp
index e12c84b96d..9f8307bbaa 100644
--- a/stepmania/src/HighScore.cpp
+++ b/stepmania/src/HighScore.cpp
@@ -58,6 +58,7 @@ XNode* HighScore::CreateNode() const
 	pNode->AppendChild( "Time",				(int)time );
 	pNode->AppendChild( "PlayerGuid",		sPlayerGuid );
 	pNode->AppendChild( "MachineGuid",		sMachineGuid );
+	pNode->AppendChild( "ProductID",		iProductID );
 
 	return pNode;
 }
@@ -87,6 +88,7 @@ void HighScore::LoadFromNode( const XNode* pNode )
 		else if( (*child)->name == "Time" )				(*child)->GetValue( (int&)time );
 		else if( (*child)->name == "PlayerGuid" )		(*child)->GetValue( sPlayerGuid );
 		else if( (*child)->name == "MachineGuid" )		(*child)->GetValue( sMachineGuid );
+		else if( (*child)->name == "ProductID" )		(*child)->GetValue( iProductID );
 	}
 
 	/* Validate input. */
diff --git a/stepmania/src/HighScore.h b/stepmania/src/HighScore.h
index 4cdac1e00e..f572aca8ae 100644
--- a/stepmania/src/HighScore.h
+++ b/stepmania/src/HighScore.h
@@ -26,7 +26,7 @@ struct HighScore
 	time_t time;		// return value of time() when screenshot was taken
 	CString sPlayerGuid;	// who made this high score
 	CString sMachineGuid;	// where this high score was made
-
+	int	iProductID;
 
 	HighScore() { Unset(); }
 	void Unset()
@@ -40,6 +40,7 @@ struct HighScore
 		time = 0;
 		sPlayerGuid = "";
 		sMachineGuid = "";
+		iProductID = 0;
 	}
 
 	bool operator>=( const HighScore& other ) const;
@@ -55,6 +56,7 @@ struct HighScore
 		COMPARE( time );
 		COMPARE( sPlayerGuid );
 		COMPARE( sMachineGuid );
+		COMPARE( iProductID );
 #undef COMPARE
 		return true;
 	}
diff --git a/stepmania/src/PrefsManager.cpp b/stepmania/src/PrefsManager.cpp
index 2fc42ac44d..f5660e5599 100644
--- a/stepmania/src/PrefsManager.cpp
+++ b/stepmania/src/PrefsManager.cpp
@@ -298,6 +298,7 @@ void PrefsManager::Init()
 	}
 
 	m_sMemoryCardProfileSubdir = PRODUCT_NAME;
+	m_iProductID = 1;
 }
 
 PrefsManager::~PrefsManager()
@@ -507,6 +508,7 @@ void PrefsManager::ReadPrefsFromFile( CString sIni )
 	ini.GetValue( "Options", "DisableScreenSaver",				m_bDisableScreenSaver );
 
 	ini.GetValue( "Options", "MemoryCardProfileSubdir",			m_sMemoryCardProfileSubdir );
+	ini.GetValue( "Options", "ProductID",						m_iProductID );
 	FOREACH_PlayerNumber( p )
 	{
 		ini.GetValue( "Options", ssprintf("DefaultLocalProfileIDP%d",p+1),	m_sDefaultLocalProfileID[p] );
@@ -733,6 +735,7 @@ void PrefsManager::SaveGlobalPrefsToDisk() const
 	ini.SetValue( "Options", "DisableScreenSaver",				m_bDisableScreenSaver );
 
 	ini.SetValue( "Options", "MemoryCardProfileSubdir",			m_sMemoryCardProfileSubdir );
+	ini.SetValue( "Options", "ProductID",						m_iProductID );
 	FOREACH_PlayerNumber( p )
 	{
 		ini.SetValue( "Options", ssprintf("DefaultLocalProfileIDP%d",p+1),	m_sDefaultLocalProfileID[p] );
@@ -796,4 +799,3 @@ void PrefsManager::ResetToFactoryDefaults()
 	SaveGlobalPrefsToDisk();
 	m_bFirstRun = false;
 }
-
diff --git a/stepmania/src/PrefsManager.h b/stepmania/src/PrefsManager.h
index f0e0cbfa1d..9bee0a8dfc 100644
--- a/stepmania/src/PrefsManager.h
+++ b/stepmania/src/PrefsManager.h
@@ -182,6 +182,7 @@ public:
 	bool			m_bDisableScreenSaver;
 	CString			m_sLanguage;
 	CString			m_sMemoryCardProfileSubdir;	// the directory on a memory card to look in for a profile
+	int				m_iProductID;		// Saved in HighScore to track what software version a score came from.
 	CString			m_sDefaultLocalProfileID[NUM_PLAYERS];
 	CString			m_sMemoryCardOsMountPoint[NUM_PLAYERS];	// if set, always use the device that mounts to this point
 	int				m_iMemoryCardUsbBus[NUM_PLAYERS];	// look for this bus when assigning cards.  -1 = match any
diff --git a/stepmania/src/ScreenEvaluation.cpp b/stepmania/src/ScreenEvaluation.cpp
index ab3d0d7e26..36787b7a27 100644
--- a/stepmania/src/ScreenEvaluation.cpp
+++ b/stepmania/src/ScreenEvaluation.cpp
@@ -898,6 +898,7 @@ void ScreenEvaluation::CommitScores(
 			hs.time = time(NULL);
 			hs.sPlayerGuid = PROFILEMAN->IsUsingProfile(p) ? PROFILEMAN->GetProfile(p)->m_sGuid : "";
 			hs.sMachineGuid = PROFILEMAN->GetMachineProfile()->m_sGuid;
+			hs.iProductID = PREFSMAN->m_iProductID;
 
 			StepsType st = GAMESTATE->GetCurrentStyleDef()->m_StepsType;