diff --git a/Source/CBIOS/cbios.asm b/Source/CBIOS/cbios.asm
index a9850fc6..6240a81b 100644
--- a/Source/CBIOS/cbios.asm
+++ b/Source/CBIOS/cbios.asm
@@ -290,6 +290,7 @@ DPBMAP:
 	.DW	DPB_FD120	; MID_FD120
 	.DW	DPB_FD111	; MID_FD111
 	.DW	DPB_HDNEW	; MID_HDNEW (1024 DIR ENTRIES)
+	.DW	DPB_ROM		; MID_MDFSH
 ;
 DPBCNT	.EQU	($ - DPBMAP) / 2
 ;
diff --git a/Source/Doc/Architecture.md b/Source/Doc/Architecture.md
index f194f9a9..572b7838 100644
--- a/Source/Doc/Architecture.md
+++ b/Source/Doc/Architecture.md
@@ -607,6 +607,8 @@ MID\_FD144   | 6         | 3.5" 1.44M Floppy
 MID\_FD360   | 7         | 5.25" 360K Floppy
 MID\_FD120   | 8         | 5.25" 1.2M Floppy
 MID\_FD111   | 9         | 8" 1.11M Floppy
+MID\_HDNEW   | 10        | Hard Disk with 1024 Directory entries
+MID\_MDFSH   | 11        | FLASH Drive
 
 ### Function 0x10 -- Disk Status (DIOSTATUS)
 
@@ -765,9 +767,9 @@ Bit 7: 1=Floppy, 0=Hard Disk (or similar, e.g. CF, SD, RAM)
 |     Bits 1-0: Reserved
 
 | If Hard Disk:
-|     Bit 6: Removable\
+|     Bit 6: Removable
 |     Bits: 5-3: Type (0=Hard, 1=CF, 2=SD, 3=USB,
-|                      4=ROM, 5=RAM, 6=RAMF, 7=Reserved)
+|                      4=ROM, 5=RAM, 6=RAMF, 7=FLASH)
 |     Bits 2-0: Reserved
 
 Each disk device is handled by an appropriate driver (IDE, SD,
diff --git a/Source/HBIOS/hbios.inc b/Source/HBIOS/hbios.inc
index 2457bc9c..95f08bf8 100644
--- a/Source/HBIOS/hbios.inc
+++ b/Source/HBIOS/hbios.inc
@@ -148,6 +148,7 @@ MID_FD360	.EQU	7
 MID_FD120	.EQU	8
 MID_FD111	.EQU	9
 MID_HDNEW	.EQU	10
+MID_MDFSH	.EQU	11
 ;
 ; CHAR DEVICE IDS
 ;
diff --git a/Source/HBIOS/md.asm b/Source/HBIOS/md.asm
index b3fb5180..3538832a 100644
--- a/Source/HBIOS/md.asm
+++ b/Source/HBIOS/md.asm
@@ -5,6 +5,13 @@
 ;
 ; MD DEVICE CONFIGURATION
 ;
+;
+;       DISK DEVICE TYPE ID	MEDIA ID		ATTRIBUTE
+;--------------------------------------------------------------------------------------------------
+;	0x00 MEMORY DISK	0x02 RAM DRIVE		%00101000 HD STYLE, NON-REMOVABLE, TYPE-RAM
+;	0x00 MEMORY DISK	0x01 ROM DRIVE		%00100000 HD STYLE, NON-REMOVABLE, TYPE-ROM
+;	0x00 MEMORY DISK	0x0B FLASH DRIVE	%00111000 HD STYLE, NON-REMOVABLE, TYPE-FLASH
+;
 MD_DEVCNT	.EQU	2		; NUMBER OF MD DEVICES SUPPORTED
 MD_CFGSIZ	.EQU	8		; SIZE OF CFG TBL ENTRIES
 ;
@@ -18,8 +25,6 @@ MD_AROM		.EQU	%00100000	; ROM ATTRIBUTE
 MD_ARAM		.EQU	%00101000	; RAM ATTRIBUTE
 MD_AFSH		.EQU	%00111000	; FLASH ATTRIBUTE
 ;
-MID_MDFS	.EQU	10		; REWRITEABLE FLASH MEDIA
-;
 ; DEVICE CONFIG TABLE (RAM DEVICE FIRST TO MAKE IT ALWAYS FIRST DRIVE)
 ;
 MD_CFGTBL:
@@ -59,19 +64,22 @@ MD_INIT:
 ;
 ; SETUP THE DIO TABLE ENTRIES
 ;
+	LD	A,(FF_RW)		; IF FLASH 
+	OR	A			; FILESYSTEM 
+	JR	NZ,MD_IN1		; CAPABLE, 
+	LD	A,MID_MDFSH		; UPDATE ROM DIO
+	LD	(MD_CFGTBL + MD_CFGSIZ + MD_MID),A
+	LD	A,MD_AFSH
+	LD	(MD_CFGTBL + MD_CFGSIZ + MD_ATTRIB),A
+MD_IN1:
 	LD	BC,MD_FNTBL
 	LD	DE,MD_CFGTBL
 	PUSH	BC
-	CALL	DIO_ADDENT
+	CALL	DIO_ADDENT		; ADD FIRST ENTRY
 	POP	BC
-;#IF (FFENABLE)				; IF FLASH 
-;	LD	A,(FF_RW)		; FILESYSTEM 
-;	OR	A			; ENABLED SKIP
-;	JR	Z,MD_IN1		; ROM DISK
-;#ENDIF
 	LD	DE,MD_CFGTBL + MD_CFGSIZ
-	CALL	DIO_ADDENT
-MD_IN1:
+	CALL	DIO_ADDENT		; ADD SECOND ENTRY
+
 	XOR	A			; INIT SUCCEEDED
 	RET				; RETURN
 ;
@@ -216,9 +224,12 @@ MD_WRITE:
 	CALL	HB_DSKWRITE		; HOOK HBIOS DISK WRITE SUPERVISOR
 	LD	BC,MD_WRSEC		; GET ADR OF SECTOR WRITE FUNC
 	LD	(MD_RWFNADR),BC		; SAVE IT AS PENDING IO FUNC
-	LD	A,(IY+MD_DEV)		; GET DEVICE NUMBER
-	OR	A			; SET FLAGS TO TEST FOR ROM (UNIT 0)
-	JR	NZ,MD_RW		; NOT ROM, SO OK TO WRITE, CONTINUE
+;	LD	A,(IY+MD_DEV)		; GET DEVICE NUMBER
+;	OR	A			; SET FLAGS TO TEST FOR ROM (UNIT 0)
+;	JR	NZ,MD_RW		; NOT ROM, SO OK TO WRITE, CONTINUE
+	LD	A,(IY+MD_MID	)	; IF THE DEVICES MEDIA
+	CP	MID_MDROM		; IS NOT ROM THEN WE CAN
+	JR	NZ,MD_RW		; WRITE TO IT
 	LD	E,0			; UNIT IS READ ONLY, ZERO SECTORS WRITTEN
 	LD	A,ERR_READONLY		; SIGNAL ERROR
 	OR	A			; SET FLAGS
@@ -500,9 +511,9 @@ FF_PROBE:
 	LD	A,(FF_RW)		; R/W FLAG TO R/O
 	OR	H
 	OR	L
-	LD	(FF_RW),A
-	POP	DE
-	POP	HL
+	LD	(FF_RW),A		; A NON ZERO VALUE
+	POP	DE			; MEANS WE CAN'T
+	POP	HL			; ENABLE FLASH WRITING
 ;
 	CALL	FF_LAND			; LOOKUP AND DISPLAY
 	POP	BC