diff --git a/src/emu/machine/cr511b.c b/src/emu/machine/cr511b.c
index 0a4ee90bf80..20968e1760b 100644
--- a/src/emu/machine/cr511b.c
+++ b/src/emu/machine/cr511b.c
@@ -57,7 +57,7 @@ cr511b_device::cr511b_device(const machine_config &mconfig, const char *tag, dev
 	m_scor_handler(*this),
 	m_xaen_handler(*this),
 	m_frame_timer(NULL),
-	m_motor(false),
+	//m_motor(false),
 	m_enabled(-1),
 	m_cmd(-1)
 {
diff --git a/src/emu/machine/cr511b.h b/src/emu/machine/cr511b.h
index 5def8947fc9..912bafc8bae 100644
--- a/src/emu/machine/cr511b.h
+++ b/src/emu/machine/cr511b.h
@@ -136,14 +136,14 @@ private:
 
 	emu_timer *m_frame_timer;
 
-	bool m_motor;
+	//bool m_motor;
 
 	// state of lines
 	int m_enabled;
 	int m_cmd;
 
 	// data transfer
-	UINT8 m_sector_buffer[CD_MAX_SECTOR_DATA];
+	//UINT8 m_sector_buffer[CD_MAX_SECTOR_DATA];
 };
 
 // device type definition
diff --git a/src/mess/drivers/amiga.c b/src/mess/drivers/amiga.c
index 17b78ad2947..0b121512131 100644
--- a/src/mess/drivers/amiga.c
+++ b/src/mess/drivers/amiga.c
@@ -89,9 +89,9 @@ class a500_state : public amiga_state
 {
 public:
 	a500_state(const machine_config &mconfig, device_type type, const char *tag) :
-	amiga_state(mconfig, type, tag),
-	m_side_int2(0),
-	m_side_int6(0)
+	amiga_state(mconfig, type, tag)
+	//m_side_int2(0),
+	//m_side_int6(0)
 	{ }
 
 	DECLARE_DRIVER_INIT( pal );
@@ -101,8 +101,8 @@ protected:
 
 private:
 	// internal state
-	int m_side_int2;
-	int m_side_int6;
+	//int m_side_int2;
+	//int m_side_int6;
 };
 
 class cdtv_state : public amiga_state
@@ -182,9 +182,9 @@ class a500p_state : public amiga_state
 public:
 	a500p_state(const machine_config &mconfig, device_type type, const char *tag) :
 	amiga_state(mconfig, type, tag),
-	m_rtc(*this, "u9"),
-	m_side_int2(0),
-	m_side_int6(0)
+	m_rtc(*this, "u9")
+	//m_side_int2(0),
+	//m_side_int6(0)
 	{ }
 
 	DECLARE_READ16_MEMBER( clock_r );
@@ -200,8 +200,8 @@ private:
 	required_device<msm6242_device> m_rtc;
 
 	// internal state
-	int m_side_int2;
-	int m_side_int6;
+	//int m_side_int2;
+	//int m_side_int6;
 };
 
 class a600_state : public amiga_state
@@ -236,8 +236,8 @@ class a1200_state : public amiga_state
 {
 public:
 	a1200_state(const machine_config &mconfig, device_type type, const char *tag) :
-	amiga_state(mconfig, type, tag),
-	m_gayle_id_count(0)
+	amiga_state(mconfig, type, tag)
+	//m_gayle_id_count(0)
 	{ }
 
 	DECLARE_READ32_MEMBER( ide_r );
@@ -254,7 +254,7 @@ protected:
 private:
 	static const int GAYLE_ID = 0xd1;
 
-	int m_gayle_id_count;
+	//int m_gayle_id_count;
 	UINT8 m_gayle_reg[4];
 };