diff --git a/stepmania/src/RageSound.cpp b/stepmania/src/RageSound.cpp
index 27486fc6dc..1df818a6f8 100644
--- a/stepmania/src/RageSound.cpp
+++ b/stepmania/src/RageSound.cpp
@@ -150,7 +150,6 @@ public:
 	RageSoundReader *Copy() const { return new RageSoundReader_Silence; }
 	int GetSampleRate() const { return 44100; }
 	unsigned GetNumChannels() const { return 1; }
-	bool IsStreamingFromDisk() const { return false; }
 	int GetNextSourceFrame() const { return 0; }
 	float GetStreamToSourceRatio() const { return 1.0f; }
 };
diff --git a/stepmania/src/RageSoundReader.h b/stepmania/src/RageSoundReader.h
index 464be45e39..e4487c28b8 100644
--- a/stepmania/src/RageSoundReader.h
+++ b/stepmania/src/RageSoundReader.h
@@ -14,7 +14,6 @@ public:
 	virtual RageSoundReader *Copy() const = 0;
 	virtual int GetSampleRate() const = 0;
 	virtual unsigned GetNumChannels() const = 0;
-	virtual bool IsStreamingFromDisk() const { return false; }
 	virtual bool SetProperty( const RString &sProperty, float fValue ) { return false; }
 	virtual RageSoundReader *GetSource() { return NULL; }
 
diff --git a/stepmania/src/RageSoundReader_Chain.cpp b/stepmania/src/RageSoundReader_Chain.cpp
index 8f47472ee5..097a5b1f95 100644
--- a/stepmania/src/RageSoundReader_Chain.cpp
+++ b/stepmania/src/RageSoundReader_Chain.cpp
@@ -250,16 +250,6 @@ void RageSoundReader_Chain::ReleaseSound( Sound *s )
 	m_apActiveSounds.erase( it );
 }
 
-bool RageSoundReader_Chain::IsStreamingFromDisk() const
-{
-	map<RString, RageSoundReader *>::const_iterator it;
-	FOREACH_CONST( RageSoundReader *, m_apLoadedSounds, it )
-		if( (*it)->IsStreamingFromDisk() )
-			return true;
-
-	return false;
-}
-
 bool RageSoundReader_Chain::SetProperty( const RString &sProperty, float fValue )
 {
 	bool bRet = false;
diff --git a/stepmania/src/RageSoundReader_Chain.h b/stepmania/src/RageSoundReader_Chain.h
index c521a61bc5..6c160b0b98 100644
--- a/stepmania/src/RageSoundReader_Chain.h
+++ b/stepmania/src/RageSoundReader_Chain.h
@@ -37,7 +37,6 @@ public:
 	int Read( char *pBuf, int iFrames );
 	int GetSampleRate() const { return m_iActualSampleRate; }
 	unsigned GetNumChannels() const { return m_iChannels; }
-	bool IsStreamingFromDisk() const;
 	bool SetProperty( const RString &sProperty, float fValue );
 	int GetNextSourceFrame() const;
 	float GetStreamToSourceRatio() const;
diff --git a/stepmania/src/RageSoundReader_ChannelSplit.cpp b/stepmania/src/RageSoundReader_ChannelSplit.cpp
index 163724b715..62c977fb8b 100644
--- a/stepmania/src/RageSoundReader_ChannelSplit.cpp
+++ b/stepmania/src/RageSoundReader_ChannelSplit.cpp
@@ -84,7 +84,6 @@ int RageSoundReader_Split::GetLength() const { return m_pImpl->m_pSource->GetLen
 int RageSoundReader_Split::GetLength_Fast() const { return m_pImpl->m_pSource->GetLength_Fast(); }
 int RageSoundReader_Split::GetSampleRate() const { return m_pImpl->m_pSource->GetSampleRate(); }
 unsigned RageSoundReader_Split::GetNumChannels() const { return m_iNumOutputChannels; }
-bool RageSoundReader_Split::IsStreamingFromDisk() const { return m_pImpl->m_pSource->IsStreamingFromDisk(); }
 int RageSoundReader_Split::GetNextSourceFrame() const { return m_iPositionFrame; }
 float RageSoundReader_Split::GetStreamToSourceRatio() const { return 1.0f; }
 
diff --git a/stepmania/src/RageSoundReader_ChannelSplit.h b/stepmania/src/RageSoundReader_ChannelSplit.h
index 9d711d221a..e0de359dac 100644
--- a/stepmania/src/RageSoundReader_ChannelSplit.h
+++ b/stepmania/src/RageSoundReader_ChannelSplit.h
@@ -20,7 +20,6 @@ public:
 	virtual int Read( char *pBuf, int iFrames );
 	virtual int GetSampleRate() const;
 	virtual unsigned GetNumChannels() const;
-	virtual bool IsStreamingFromDisk() const;
 	virtual bool SetProperty( const RString &sProperty, float fValue );
 	virtual int GetNextSourceFrame() const;
 	virtual float GetStreamToSourceRatio() const;
diff --git a/stepmania/src/RageSoundReader_FileReader.h b/stepmania/src/RageSoundReader_FileReader.h
index 634fede526..d770f385ec 100644
--- a/stepmania/src/RageSoundReader_FileReader.h
+++ b/stepmania/src/RageSoundReader_FileReader.h
@@ -24,7 +24,6 @@ public:
 		OPEN_FATAL_ERROR=2,
 	};
 	virtual OpenResult Open(RString filename) = 0;
-	virtual bool IsStreamingFromDisk() const { return true; }
 	virtual float GetStreamToSourceRatio() const { return 1.0f; }
 	virtual RString GetError() const { return m_sError; }
 
diff --git a/stepmania/src/RageSoundReader_Filter.h b/stepmania/src/RageSoundReader_Filter.h
index d93e44eca0..e1822452a0 100644
--- a/stepmania/src/RageSoundReader_Filter.h
+++ b/stepmania/src/RageSoundReader_Filter.h
@@ -19,7 +19,6 @@ public:
 	virtual int Read( char *pBuf, int iFrames ) { return m_pSource->Read( pBuf, iFrames ); }
 	virtual int GetSampleRate() const { return m_pSource->GetSampleRate(); }
 	virtual unsigned GetNumChannels() const { return m_pSource->GetNumChannels(); }
-	virtual bool IsStreamingFromDisk() const { return m_pSource->IsStreamingFromDisk(); }
 	virtual bool SetProperty( const RString &sProperty, float fValue ) { return m_pSource->SetProperty( sProperty, fValue ); }
 	virtual int GetNextSourceFrame() const { return m_pSource->GetNextSourceFrame(); }
 	virtual float GetStreamToSourceRatio() const { return m_pSource->GetStreamToSourceRatio(); }
diff --git a/stepmania/src/RageSoundReader_Preload.h b/stepmania/src/RageSoundReader_Preload.h
index 4e7993a818..56c469d375 100644
--- a/stepmania/src/RageSoundReader_Preload.h
+++ b/stepmania/src/RageSoundReader_Preload.h
@@ -19,7 +19,6 @@ public:
 	int Read( char *pBuffer, int iLength );
 	int GetSampleRate() const { return m_iSampleRate; }
 	unsigned GetNumChannels() const { return m_iChannels; }
-	bool IsStreamingFromDisk() const { return false; }
 	int GetNextSourceFrame() const;
 	float GetStreamToSourceRatio() const { return m_fRate; }
 	RString GetError() const { return ""; }
diff --git a/stepmania/src/RageSoundReader_ThreadedBuffer.h b/stepmania/src/RageSoundReader_ThreadedBuffer.h
index 05fe363294..b52951782e 100644
--- a/stepmania/src/RageSoundReader_ThreadedBuffer.h
+++ b/stepmania/src/RageSoundReader_ThreadedBuffer.h
@@ -25,7 +25,6 @@ public:
 	virtual int GetLength_Fast() const;
 	virtual int GetSampleRate() const { return m_iSampleRate; }
 	virtual unsigned GetNumChannels() const { return m_iChannels; }
-	virtual bool IsStreamingFromDisk() const { return false; }
 	virtual bool SetProperty( const RString &sProperty, float fValue );
 	virtual float GetStreamToSourceRatio() const;
 	virtual RageSoundReader *GetSource() { return NULL; }