diff --git a/src/emu/diimage.c b/src/emu/diimage.c
index 24b74b10ef9..cd698fffcca 100644
--- a/src/emu/diimage.c
+++ b/src/emu/diimage.c
@@ -50,6 +50,7 @@
 //**************************************************************************
 const image_device_type_info device_image_interface::m_device_info_array[] =
 	{
+		{ IO_UNKNOWN,	"unknown",		"unkn" },
 		{ IO_CARTSLOT,	"cartridge",	"cart" }, /*  0 */
 		{ IO_FLOPPY,	"floppydisk",	"flop" }, /*  1 */
 		{ IO_HARDDISK,	"harddisk",		"hard" }, /*  2 */
@@ -65,6 +66,7 @@ const image_device_type_info device_image_interface::m_device_info_array[] =
 		{ IO_MEMCARD,	"memcard",		"memc" }, /* 12 */
 		{ IO_CDROM,     "cdrom",        "cdrm" }, /* 13 */
 		{ IO_MAGTAPE,	"magtape",		"magt" }, /* 14 */
+		{ IO_ROM,		"romimage",		"rom"  }, /* 15 */
 	};
 
 
diff --git a/src/emu/diimage.h b/src/emu/diimage.h
index dad232365a7..6a5e7f50b42 100644
--- a/src/emu/diimage.h
+++ b/src/emu/diimage.h
@@ -69,7 +69,8 @@ enum iodevice_t
     IO_MEMCARD,     /* 13 - Memory card */
     IO_CDROM,       /* 14 - optical CD-ROM disc */
 	IO_MAGTAPE,     /* 15 - Magentic tape */
-    IO_COUNT        /* 16 - Total Number of IO_devices for searching */
+	IO_ROM,			/* 16 - Individual ROM image - the Amstrad CPC has a few applications that were sold on 16kB ROMs */
+    IO_COUNT        /* 17 - Total Number of IO_devices for searching */
 };
 
 enum image_error_t