diff --git a/Doc/FDU.txt b/Doc/FDU.txt
index 278d6686..88fd88a3 100644
--- a/Doc/FDU.txt
+++ b/Doc/FDU.txt
@@ -517,4 +517,7 @@ WW 4/29/2020: v5.5
   - Added support for Etched Pixels FDC
 
 WW 12/12/2020: v5.6
-  - Updated SmallZ80 support for new I/O map
\ No newline at end of file
+  - Updated SmallZ80 support for new I/O map
+
+WW 3/24/2021: v5.7
+  - Added support for a few single-sided formats
\ No newline at end of file
diff --git a/Source/Apps/FDU/FDU.asm b/Source/Apps/FDU/FDU.asm
index 9b7a5620..6941c682 100644
--- a/Source/Apps/FDU/FDU.asm
+++ b/Source/Apps/FDU/FDU.asm
@@ -47,6 +47,7 @@
 ;   2020-01-05: V5.4	ADDED SUPPORT FOR DYNO FDC
 ;   2020-04-29: v5.5	ADDED SUPPORT FOR ETCHED PIXELS FDC
 ;   2020-12-12: v5.6	UPDATED SMALLZ80 TO NEW I/O ADDRESSES
+;   2021-03-24: v5.7    ADDED SOME SINGLE-SIDED FORMATS
 ;			
 ;_______________________________________________________________________________
 ;
@@ -216,8 +217,8 @@ INIT5:
 	XOR	A
 	RET
 		
-STR_BANNER	.DB	"Floppy Disk Utility (FDU) v5.6, 12-Dec-2020$"
-STR_BANNER2	.DB	"Copyright (C) 2020, Wayne Warthen, GNU GPL v3","$"
+STR_BANNER	.DB	"Floppy Disk Utility (FDU) v5.7, 24-Mar-2021$"
+STR_BANNER2	.DB	"Copyright (C) 2021, Wayne Warthen, GNU GPL v3","$"
 STR_HBIOS	.DB	" [HBIOS]$"
 STR_UBIOS	.DB	" [UBIOS]$"
 ;
@@ -483,16 +484,16 @@ MM_INFO:	.DW	MM_DRAW
 ;
 STR_MAINMENU:
 	.TEXT	"=======================<< FDU MAIN MENU >>======================\r\n"
-;	.TEXT	"(S)ETUP: UNIT=XX  MEDIA=XXXXXX	 MODE=XXXXXXXXXX  TRACE=XX\r\n"
+;	.TEXT	"(S)ETUP: UNIT=XX  MEDIA=XXXXXXXXXXXXX  MODE=XXXXXXXXXX  TRACE=XX\r\n"
 	.TEXT	"(S)ETUP: UNIT="
 MV_UNIT	.TEXT		      "XX"
 	.TEXT			"  MEDIA="
-MV_MED	.TEXT				"XXXXXX"
-	.TEXT				      "	 MODE="
-MV_MODE	.TEXT					     "XXXXXXXXXX"
-	.TEXT						       "  TRACE="
-MV_TRC	.TEXT							       "XX"
-	.TEXT								 "\r\n"
+MV_MED	.TEXT				"XXXXXXXXXXXXX"
+	.TEXT				             "  MODE="
+MV_MODE	.TEXT					            "XXXXXXXXXX"
+	.TEXT						              "  TRACE="
+MV_TRC	.TEXT							              "XX"
+	.TEXT								        "\r\n"
 	.TEXT	"----------------------------------------------------------------\r\n"
 	.TEXT	"(R)EAD		(W)RITE		(F)ORMAT	(V)ERIFY\r\n"	
 	.TEXT	"(I)NIT BUFFER	(D)UMP BUFFER	FDC (C)MDS	E(X)IT\r\n"
@@ -1071,21 +1072,29 @@ MMOP_RANDOM1:	; GENERATE RANDOM TRACK
 	JP	P,MMOP_RANDOM1
 	LD	(DCD_TRACK),A
 
-		; GENERATE RANDOM HEAD
+MMOP_RANDOM2:	; GENERATE RANDOM HEAD
+	;OR	A			
+	;CALL	RNDBYTE
+	;AND	01H			; JUST USE LOW ORDER BIT
+	;LD	(DCD_HEAD),A
+	LD	A,(MDB_NUMHD)
+	LD	C,A
 	CALL	RNDBYTE
-	AND	01H			; JUST USE LOW ORDER BIT
+	AND	01H			; USE 1 BIT FOR UP TO 2 HEADS
+	CP	C
+	JP	P,MMOP_RANDOM2
 	LD	(DCD_HEAD),A
 	
-MMOP_RANDOM2:	; GENERATE RANDOM SECTOR
+MMOP_RANDOM3:	; GENERATE RANDOM SECTOR
 	LD	A,(MDB_EOT)
 	LD	C,A
 	INC	C			; ONE MORE THEN MAX SECTOR
 	CALL	RNDBYTE
 	AND	1FH			; USE 5 BITS FOR UP TO 32 SECTORS
 	CP	C			; MAX SECTOR NUM IS 9 + 1 = 0AH
-	JP	P,MMOP_RANDOM2
+	JP	P,MMOP_RANDOM3
 	CP	00H			; SECTOR NUM STARTS AT 1, DON'T ALLOW ZERO
-	JP	Z,MMOP_RANDOM2
+	JP	Z,MMOP_RANDOM3
 	LD	(DCD_SECTOR),A
 	
 	CALL	DIO_RUN
@@ -1601,6 +1610,10 @@ MT_PC320	.EQU	2
 MT_PC360	.EQU	3
 MT_PC120	.EQU	4
 MT_PC111	.EQU	5
+MT_PC160	.EQU	6
+MT_PC180	.EQU	7
+MT_PC320SS	.EQU	8
+MT_PC360SS	.EQU	9
 ;
 MIT:		; MEDIA INDEX TABLE
 		.DW	MDB_PC720
@@ -1609,6 +1622,10 @@ MIT:		; MEDIA INDEX TABLE
 		.DW	MDB_PC360
 		.DW	MDB_PC120
 		.DW	MDB_PC111
+		.DW	MDB_PC160
+		.DW	MDB_PC180
+		.DW	MDB_PC320SS
+		.DW	MDB_PC360SS
 MIT_ENTCNT	.EQU	(($ - MIT) / 2)
 ;
 ; Specify Command:
@@ -1660,7 +1677,7 @@ FCB_PC720	.DB	009H		; SECTOR COUNT
 		.IF	(($ - MDB_PC720) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC720	.TEXT	"720KB $"
+DTL_PC720	.TEXT	"720KB DS/DD  $"
 DTS_PC720	.TEXT	"3.5\" 720KB - 9 SECTORS, 2 SIDES, 80 TRACKS, DOUBLE DENSITY$"
 ;
 MDB_PC144	.DW	DTL_PC144	; ADDRESS OF MEDIA LABEL
@@ -1683,7 +1700,7 @@ FCB_PC144	.DB	012H		; SECTOR COUNT
 		.IF	(($ - MDB_PC144) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC144	.TEXT	"1.44MB$"
+DTL_PC144	.TEXT	"1.44MB DS/HD $"
 DTS_PC144	.TEXT	"3.5\" 1.44MB - 18 SECTORS, 2 SIDES, 80 TRACKS, HIGH DENSITY$"
 ;	
 MDB_PC320	.DW	DTL_PC320	; ADDRESS OF MEDIA LABEL
@@ -1706,7 +1723,7 @@ FCB_PC320	.DB	008H		; SECTOR COUNT
 		.IF	(($ - MDB_PC320) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC320	.TEXT	"320KB $"
+DTL_PC320	.TEXT	"320KB DS/DD  $"
 DTS_PC320	.TEXT	"5.25\" 320KB - 8 SECTORS, 2 SIDES, 40 TRACKS, DOUBLE DENSITY$"
 ;	
 MDB_PC360	.DW	DTL_PC360	; ADDRESS OF MEDIA LABEL
@@ -1729,7 +1746,7 @@ FCB_PC360	.DB	009H		; SECTOR COUNT
 		.IF	(($ - MDB_PC360) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC360	.TEXT	"360KB $"
+DTL_PC360	.TEXT	"360KB DS/DD  $"
 DTS_PC360	.TEXT	"5.25\" 360KB - 9 SECTORS, 2 SIDES, 40 TRACKS, DOUBLE DENSITY$"
 ;	
 MDB_PC120	.DW	DTL_PC120	; ADDRESS OF MEDIA LABEL
@@ -1752,7 +1769,7 @@ FCB_PC120	.DB	00FH		; SECTOR COUNT
 		.IF	(($ - MDB_PC120) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC120	.TEXT	"1.2MB $"
+DTL_PC120	.TEXT	"1.2MB DS/HD  $"
 DTS_PC120	.TEXT	"5.25\" 1.2MB - 15 SECTORS, 2 SIDES, 80 TRACKS, HIGH DENSITY$"
 ;	
 MDB_PC111	.DW	DTL_PC111	; ADDRESS OF MEDIA LABEL
@@ -1775,9 +1792,101 @@ FCB_PC111	.DB	00FH		; SECTOR COUNT
 		.IF	(($ - MDB_PC111) != MDB_LEN)
 		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
 		.ENDIF
-DTL_PC111	.TEXT	"1.11MB$"
+DTL_PC111	.TEXT	"1.11MB DS/DD $"
 DTS_PC111	.TEXT	"8\" 1.11MB - 15 SECTORS, 2 SIDES, 77 TRACKS, DOUBLE DENSITY$"
 ;	
+MDB_PC160	.DW	DTL_PC160	; ADDRESS OF MEDIA LABEL
+		.DW	DTS_PC160	; ADDRESS OF MEDIA DESCRIPTION
+		.DB	028H		; NUMBER OF CYLINDERS
+		.DB	001H		; NUMBER OF HEADS
+		.DB	008H		; NUMBER OF SECTORS
+		.DB	001H		; START OF TRACK (ID OF FIRST SECTOR, USUALLY 1)
+FCB_PC160	.DB	008H		; SECTOR COUNT
+		.DW	200H		; SECTOR SIZE IN BYTES
+		.DB	02AH		; GAP LENGTH (R/W)
+		.DB	050H		; GAP LENGTH (FORMAT)
+		.DB	(13 << 4) | 0	; SRT = 6ms, HUT = 512ms
+		.DB	4		; HLT = 16ms
+		.DB	DORA_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORB_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORC_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORD_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DCR_BR250	; CONTROL REGISTER VALUE
+		.IF	(($ - MDB_PC160) != MDB_LEN)
+		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
+		.ENDIF
+DTL_PC160	.TEXT	"160KB SS/DD  $"
+DTS_PC160	.TEXT	"5.25\" 160KB - 8 SECTORS, 1 SIDE, 40 TRACKS, DOUBLE DENSITY$"
+;
+MDB_PC180	.DW	DTL_PC180	; ADDRESS OF MEDIA LABEL
+		.DW	DTS_PC180	; ADDRESS OF MEDIA DESCRIPTION
+		.DB	028H		; NUMBER OF CYLINDERS
+		.DB	001H		; NUMBER OF HEADS
+		.DB	009H		; NUMBER OF SECTORS
+		.DB	001H		; START OF TRACK (ID OF FIRST SECTOR, USUALLY 1)
+FCB_PC180	.DB	009H		; SECTOR COUNT
+		.DW	200H		; SECTOR SIZE IN BYTES
+		.DB	02AH		; GAP LENGTH (R/W)
+		.DB	050H		; GAP LENGTH (FORMAT)
+		.DB	(13 << 4) | 0	; SRT = 6ms, HUT = 512ms
+		.DB	4		; HLT = 16ms
+		.DB	DORA_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORB_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORC_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORD_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DCR_BR250	; CONTROL REGISTER VALUE
+		.IF	(($ - MDB_PC180) != MDB_LEN)
+		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
+		.ENDIF
+DTL_PC180	.TEXT	"180KB SS/DD  $"
+DTS_PC180	.TEXT	"5.25\" 180KB - 9 SECTORS, 1 SIDE, 40 TRACKS, DOUBLE DENSITY$"
+;
+MDB_PC320SS	.DW	DTL_PC320SS	; ADDRESS OF MEDIA LABEL
+		.DW	DTS_PC320SS	; ADDRESS OF MEDIA DESCRIPTION
+		.DB	050H		; NUMBER OF CYLINDERS
+		.DB	001H		; NUMBER OF HEADS
+		.DB	008H		; NUMBER OF SECTORS
+		.DB	001H		; START OF TRACK (ID OF FIRST SECTOR, USUALLY 1)
+FCB_PC320SS	.DB	008H		; SECTOR COUNT
+		.DW	200H		; SECTOR SIZE IN BYTES
+		.DB	02AH		; GAP LENGTH (R/W)
+		.DB	050H		; GAP LENGTH (FORMAT)
+		.DB	(13 << 4) | 0	; SRT = 6ms, HUT = 512ms
+		.DB	4		; HLT = 16ms
+		.DB	DORA_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORB_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORC_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORD_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DCR_BR250	; CONTROL REGISTER VALUE
+		.IF	(($ - MDB_PC320SS) != MDB_LEN)
+		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
+		.ENDIF
+DTL_PC320SS	.TEXT	"320KB SS/DD  $"
+DTS_PC320SS	.TEXT	"5.25\" 320KB - 8 SECTORS, 1 SIDE, 80 TRACKS, DOUBLE DENSITY$"
+;
+MDB_PC360SS	.DW	DTL_PC360SS	; ADDRESS OF MEDIA LABEL
+		.DW	DTS_PC360SS	; ADDRESS OF MEDIA DESCRIPTION
+		.DB	050H		; NUMBER OF CYLINDERS
+		.DB	001H		; NUMBER OF HEADS
+		.DB	009H		; NUMBER OF SECTORS
+		.DB	001H		; START OF TRACK (ID OF FIRST SECTOR, USUALLY 1)
+FCB_PC360SS	.DB	009H		; SECTOR COUNT
+		.DW	200H		; SECTOR SIZE IN BYTES
+		.DB	02AH		; GAP LENGTH (R/W)
+		.DB	050H		; GAP LENGTH (FORMAT)
+		.DB	(13 << 4) | 0	; SRT = 6ms, HUT = 512ms
+		.DB	4		; HLT = 16ms
+		.DB	DORA_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORB_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORC_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DORD_BR250	; OPERATIONS REGISTER VALUE
+		.DB	DCR_BR250	; CONTROL REGISTER VALUE
+		.IF	(($ - MDB_PC360SS) != MDB_LEN)
+		.ECHO	"*** FCB SIZE ERROR!!! ***\n"
+		.ENDIF
+DTL_PC360SS	.TEXT	"360KB SS/DD  $"
+DTS_PC360SS	.TEXT	"5.25\" 360KB - 9 SECTORS, 1 SIDE, 80 TRACKS, DOUBLE DENSITY$"
+;
 ;===============================================================================
 ; FLOPPY DISK CONTROL MENU (DIRECT MENU INTERFACE TO FDC & RELATED HARDWARE)
 ;===============================================================================
diff --git a/Source/Apps/FDU/FDU.txt b/Source/Apps/FDU/FDU.txt
index 278d6686..88fd88a3 100644
--- a/Source/Apps/FDU/FDU.txt
+++ b/Source/Apps/FDU/FDU.txt
@@ -517,4 +517,7 @@ WW 4/29/2020: v5.5
   - Added support for Etched Pixels FDC
 
 WW 12/12/2020: v5.6
-  - Updated SmallZ80 support for new I/O map
\ No newline at end of file
+  - Updated SmallZ80 support for new I/O map
+
+WW 3/24/2021: v5.7
+  - Added support for a few single-sided formats
\ No newline at end of file