diff --git a/hash/pet_hdd.xml b/hash/pet_hdd.xml
index 9759aaaa2e9..7a2993c2db4 100644
--- a/hash/pet_hdd.xml
+++ b/hash/pet_hdd.xml
@@ -28,4 +28,17 @@
 		</part>
 	</software>
 
+	<software name="softbox">
+		<description>SoftBox CP/M 2.2</description>
+		<year>1981</year>
+		<publisher>Small Systems Engineering</publisher>
+
+		<!-- Corvus Model 11 (10 MB): IMI 5012H -->
+		<part name="hdd" interface="corvus_hdd">
+			<diskarea name="harddriv">
+				<disk name="imi5012h" sha1="ae7bdad4dfeee1351e67ffcbf8c634006c03697f" writeable="yes" />
+			</diskarea>
+		</part>
+	</software>
+
 </softwarelist>
diff --git a/hash/softbox.xml b/hash/softbox.xml
index c517c51790e..4171fd9f915 100644
--- a/hash/softbox.xml
+++ b/hash/softbox.xml
@@ -14,4 +14,17 @@
 		</part>
 	</software>
 
+	<software name="corvusm11">
+		<description>SoftBox CP/M 2.2 (Corvus Model 11)</description>
+		<year>1981</year>
+		<publisher>Small Systems Engineering</publisher>
+
+		<!-- Corvus Model 11 (10 MB): IMI 5012H -->
+		<part name="hdd" interface="corvus_hdd">
+			<diskarea name="harddriv">
+				<disk name="imi5012h" sha1="ae7bdad4dfeee1351e67ffcbf8c634006c03697f" writeable="yes" />
+			</diskarea>
+		</part>
+	</software>
+
 </softwarelist>
diff --git a/src/emu/bus/ieee488/hardbox.c b/src/emu/bus/ieee488/hardbox.c
index 5c4f9b19760..c729da65fc7 100644
--- a/src/emu/bus/ieee488/hardbox.c
+++ b/src/emu/bus/ieee488/hardbox.c
@@ -300,10 +300,10 @@ static MACHINE_CONFIG_FRAGMENT( hardbox )
 	MCFG_I8255A_ADD(I8255_1_TAG, ppi1_intf)
 
 	MCFG_DEVICE_ADD(CORVUS_HDC_TAG, CORVUS_HDC, 0)
-	MCFG_HARDDISK_ADD("harddisk1")
-	MCFG_HARDDISK_ADD("harddisk2")
-	MCFG_HARDDISK_ADD("harddisk3")
-	MCFG_HARDDISK_ADD("harddisk4")
+	MCFG_HARDDISK_CONFIG_ADD("harddisk1", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk2", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk3", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk4", corvus_hdc_t::hd_intf)
 MACHINE_CONFIG_END
 
 
diff --git a/src/emu/bus/ieee488/softbox.c b/src/emu/bus/ieee488/softbox.c
index d169022133c..fd4f7f8558f 100644
--- a/src/emu/bus/ieee488/softbox.c
+++ b/src/emu/bus/ieee488/softbox.c
@@ -278,10 +278,10 @@ static MACHINE_CONFIG_FRAGMENT( softbox )
 	MCFG_COM8116_FT_HANDLER(DEVWRITELINE(I8251_TAG, i8251_device, write_txc))
 
 	MCFG_DEVICE_ADD(CORVUS_HDC_TAG, CORVUS_HDC, 0)
-	MCFG_HARDDISK_ADD("harddisk1")
-	MCFG_HARDDISK_ADD("harddisk2")
-	MCFG_HARDDISK_ADD("harddisk3")
-	MCFG_HARDDISK_ADD("harddisk4")
+	MCFG_HARDDISK_CONFIG_ADD("harddisk1", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk2", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk3", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk4", corvus_hdc_t::hd_intf)
 
 	//MCFG_IMI7000_BUS_ADD("imi5000h", NULL, NULL, NULL)
 MACHINE_CONFIG_END
diff --git a/src/mess/drivers/softbox.c b/src/mess/drivers/softbox.c
index 747f2a570c5..dbfe856ebbd 100644
--- a/src/mess/drivers/softbox.c
+++ b/src/mess/drivers/softbox.c
@@ -415,10 +415,10 @@ static MACHINE_CONFIG_START( softbox, softbox_state )
 	MCFG_CBM_IEEE488_ADD("c8050")
 	
 	MCFG_DEVICE_ADD(CORVUS_HDC_TAG, CORVUS_HDC, 0)
-	MCFG_HARDDISK_ADD("harddisk1")
-	MCFG_HARDDISK_ADD("harddisk2")
-	MCFG_HARDDISK_ADD("harddisk3")
-	MCFG_HARDDISK_ADD("harddisk4")
+	MCFG_HARDDISK_CONFIG_ADD("harddisk1", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk2", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk3", corvus_hdc_t::hd_intf)
+	MCFG_HARDDISK_CONFIG_ADD("harddisk4", corvus_hdc_t::hd_intf)
 
 	MCFG_IMI7000_BUS_ADD("imi5000h", NULL, NULL, NULL)
 
diff --git a/src/mess/includes/corvushd.h b/src/mess/includes/corvushd.h
index 09e3fcaf25c..7cdffa25a1d 100644
--- a/src/mess/includes/corvushd.h
+++ b/src/mess/includes/corvushd.h
@@ -186,6 +186,8 @@ public:
 	DECLARE_WRITE8_MEMBER( write );
 	DECLARE_READ8_MEMBER( status_r );
 
+	static struct harddisk_interface hd_intf;
+
 protected:
 	// device-level overrides
 	virtual void device_start();
diff --git a/src/mess/machine/corvushd.c b/src/mess/machine/corvushd.c
index 5cea873fc1c..bf1b327b972 100644
--- a/src/mess/machine/corvushd.c
+++ b/src/mess/machine/corvushd.c
@@ -70,6 +70,8 @@
 
 const device_type CORVUS_HDC = &device_creator<corvus_hdc_t>;
 
+harddisk_interface corvus_hdc_t::hd_intf = { NULL, NULL, "corvus_hdd", NULL };
+
 corvus_hdc_t::corvus_hdc_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
 	device_t(mconfig, CORVUS_HDC, "Corvus Flat Cable HDC", tag, owner, clock, "corvus_hdc", __FILE__),
 	m_status(0),