diff --git a/CDX.ASM b/CDX.ASM
index 7b6b835..5543ad5 100644
--- a/CDX.ASM
+++ b/CDX.ASM
@@ -12,8 +12,7 @@
 ;	COMMAND
 ; -h,?	Help page
 
-	DEFINE _MAME 1
-
+MAX_DSS_ERR	EQU	33
 
 CR	EQU	13
 LF	EQU	10
@@ -26,7 +25,7 @@ LF	EQU	10
 	ORG	#8100-22
 
 	DB	"EXE"	;EXE ID
-	DB	#00	;EXE VERSION
+	DB	#01	;EXE VERSION
 	DW	#0016	;CODE OFFSET LOW
 	DW	#0000	;CODE OFFSET HIGH
 	DW	#0000	;END-BEG ;PRIMARY LOADER
@@ -92,40 +91,47 @@ START:	PUSH	IX
 	OR	A
 	CALL	Z,COMMAND
 
-	CALL	MDEALLOC
-QUIT:	CALL	CRLF
-.loop:	LD	BC,Dss.Exit
-	RST	ToDSS
-	JP	.loop
+	;CALL	MDEALLOC
+QUIT:		CALL	CRLF
+		CALL	RESTORE_STATE
+		;
+.loop:		LD	BC,Dss.Exit
+		RST	ToDSS
+		JP	.loop
 
-OLD_DSS
-	LD	A,MSG_OLD_DSS
-	CALL	MESSAGE
-	JR	QUIT
+OLD_DSS:	LD	A,MSG_OLD_DSS
+		CALL	MESSAGE
+		JR	QUIT
 
-HNDMEM	DB	#FF
+RESTORE_STATE:
+.set_par+1:	LD	B,1
+		LD	C,BIOS.DRV_SET_PAR
+		LD	A,(CDDRIVE)
+		JP	ToBIOS
 
-MALLOC
+;HNDMEM	DB	#FF
+
+MALLOC:
 	LD	BC,2*256 + Dss.GetMem
 	RST	ToDSS
-	JR	NC,M_ALLOK
+	JR	NC,.cont
 	LD	A,MSG_MEMERROR
 	CALL	MESSAGE
 	SCF
 	RET
-M_ALLOK
-	LD	(HNDMEM),A
+	;
+.cont:	PUSH	AF
 	LD	BC,1*256 + Dss.SetWin3
 	RST	ToDSS
 	LD	HL,BANKTBL
 	LD	C,BIOS.GetMemBlkPages
-	LD	A,(HNDMEM)
+	POP	AF
 	JP	ToBIOS
 
-MDEALLOC
-	LD	A,(HNDMEM)
-	LD	C,Dss.FreeMem
-	JP	ToDSS
+; MDEALLOC
+; 	LD	A,(HNDMEM)
+; 	LD	C,Dss.FreeMem
+; 	JP	ToDSS
 
 ; FIND_CDROM
 ; 	LD	IX,DEV_CFG
@@ -184,28 +190,47 @@ MDEALLOC
 ;	RST	ToDSS
 ;	RET
 
-INIT:	XOR	A
-	LD	(STOPMODE),A
-	DEC	A
-	LD	(CDDRIVE),A
-	;
-	LD	BC,+(#C0-1)*256 + BIOS.DRV_DETECT
-.loop:	INC	B
-	LD	A,B
-	CP	#C4
-	SCF
-	RET	Z
-	PUSH	BC
-	RST	ToBIOS
-	POP	BC
-	JR	C,.loop
-	LD	A,B
-	LD	(CDDRIVE),A
-	RET
-	;
-	; LD	C,BIOS.DRV_RESET
-	; JP	ToBIOS
-;	RET
+INIT:		XOR	A
+		LD	(STOPMODE),A
+		DEC	A
+		LD	(CDDRIVE),A
+		;
+		LD	BC,+(#C0-1)*256 + BIOS.DRV_DETECT
+.loop:		INC	B
+		LD	A,B
+		CP	#C4
+		SCF
+		RET	Z
+		PUSH	BC
+		RST	ToBIOS
+		POP	BC
+		JR	NC,.found
+		;
+		CP	BIOS.Error.ATAPI.MediumError
+		JR	Z,.media_changed
+		CP	BIOS.Error.ATAPI.UnitAttention
+		JR	NZ,.loop
+		;
+.media_changed:	PUSH	BC
+		LD	A,B
+		CALL	SAVE_MEDIA_CHANGED
+		POP	BC
+		;
+.found:		LD	A,B
+		LD	(CDDRIVE),A
+		RET
+
+
+SAVE_MEDIA_CHANGED:
+		LD	C,BIOS.DRV_GET_PAR
+		RST	ToBIOS
+		OR	%0000'0010
+		LD	B,A
+		LD	A,(RESTORE_STATE.set_par)
+		OR	B
+		LD	(RESTORE_STATE.set_par),A
+		RET
+
 
 ;VARIABLES
 
@@ -214,9 +239,23 @@ INIT:	XOR	A
 
 STOPMODE	DB	#00
 
-	INCLUDE	"cmdparse.asm"
-	INCLUDE	"command.asm"
-	INCLUDE	"cd_dos.asm"
+
+
+
+CMD_PARSE_ASM.Start:	INCLUDE	"cmdparse.asm"
+CMD_PARSE_ASM.End	EQU	$
+	DISPLAY	"cmdparse.asm size:	",/D,CMD_PARSE_ASM.End - CMD_PARSE_ASM.Start
+	;
+COMMAND_ASM.Start	INCLUDE	"command.asm"
+COMMAND_ASM.End		EQU	$
+	DISPLAY	"command.asm size:	",/D,COMMAND_ASM.End - COMMAND_ASM.Start
+	;
+CD_DOS_ASM.Start:	INCLUDE	"cd_dos.asm"
+CD_DOS_ASM.End		EQU	$
+	DISPLAY	"cd_dos.asm size:	",/D,CD_DOS_ASM.End - CD_DOS_ASM.Start
+
+
+
 
 CRLF:	PUSH	HL
 	LD	HL,MSG0.crlf
@@ -231,11 +270,11 @@ CRLF:	PUSH	HL
 	RET
 ;
 
-ERROR:		CP	MAX_DSS_ERR
+ERROR:		;CP	MAX_DSS_ERR
 		LD	E,A
 		LD	D,0
-		JR	C,.ERR_MSG
-		LD	E,D
+		;JR	C,.ERR_MSG
+		;LD	E,D
 		;JP	.ERR_MSG
 		;
 .ERR_MSG:	PUSH	DE
@@ -248,20 +287,70 @@ ERROR:		CP	MAX_DSS_ERR
 		JP	CRLF
 
 
-FMESAGE	INC	DE
-	LD	HL,ERR0
-	LD	BC,ERR0.Size
-LCPIR	XOR	A
-	CPIR
-	RET	PO
-	RET	NZ
-	DEC	DE
-	LD	A,D
-	OR	E
-	JP	NZ,LCPIR
-	RET
+FMESAGE:	LD	A,E
+		LD	HL,SYS_ERRORS		; массив строк
+		LD	BC,SYS_ERRORS.Size	; размер массива
+		RLA
+		jr	nc,.set_de		
+		ld	hl,DRV_ERRORS		; массив строк
+		ld	bc,DRV_ERRORS.Size	; размер массива
+.set_de:	SRL	A
+		LD	E,A
+		INC	DE
+LCPIR:		XOR	A
+		CPIR
+		RET	PO
+		RET	NZ
+		;
+		XOR	A
+		CP	(HL)
+		JR	Z,.no_mess
+		;
+		DEC	DE
+		LD	A,D
+		OR	E
+		JP	NZ,LCPIR
+		RET
+.no_mess:	INC	HL
+		RET
+/*
+LCPIR:		xor	a
+		cpir
+		ret	po
+		ret	nz
+		;R11
+		 XOR	A
+		 CP	(HL)
+		 JR	Z,.no_mess
+		;
+		dec	de
+		ld	a,d
+		or	e
+		jr	nz,LCPIR
+		ret
+.no_mess:	INC	HL
+		RET
 
-MAX_DSS_ERR	EQU	33
+
+print_err_message:
+		ld	hl,SYS_ERRORS		; массив строк
+		ld	bc,SYS_ERRORS.Size	; размер массива
+		;cp	%1000'0000
+		RLA
+		jr	nc,.set_de
+		;
+		;and	%0111'1111
+		ld	hl,DRV_ERRORS		; массив строк
+		ld	bc,DRV_ERRORS.Size	; размер массива
+		;
+.set_de:	SRL	A
+		ld	e,a
+		ld	d,0
+		inc	de
+		call	LCPIR			; найти строку
+		call	PRINTZ			; формат. вывод строки
+		jp	newline
+*/
 
 ERRCDX	DB	"CDX: ",0
 
@@ -421,8 +510,8 @@ MSG_COPYABORTED		EQU	19	;21
 
 MSG0	BYTE	0
 ;0
-	BYTE	"CDROM eXtension utility v1.01, 2023 (c) Sprinter Team",CR,LF
-	DZ	"Type CDX.EXE -? for help.",CR,LF,CR,LF
+	BYTE	"CDROM eXtension utility v1.02.1, 2025 (c) Sprinter Team",CR,LF
+	DZ	"Type CDX.EXE -? for help.",CR,LF
 ;1
 	DZ	"Opening tray..."
 ;2
@@ -520,5 +609,6 @@ BUFERS_NUMBER	EQU 6
 ;
 	ASSERT (DUMPBUF+2048 < #C000), "NO FREE SPACE FOR BUFFERS"
 ;-----------------------------------------------------------------------;
-DEV_CFG
+DEV_CFG:
+	DISPLAY "\n\tCDX size:	",/D,DEV_CFG - START
 ;[END]
diff --git a/CDX.TXT b/CDX.TXT
index 92da5ac..ec377ad 100644
--- a/CDX.TXT
+++ b/CDX.TXT
@@ -1,5 +1,5 @@
 
-                   CDROM eXtension utility version 1.01
+                   CDROM eXtension utility version 1.02.01
              ------------------------------------------------
 
  It's utility came for solving the problem with support CDROM in DSS ver 1.x.
diff --git a/CMDPARSE.ASM b/CMDPARSE.ASM
index 0b23d08..461e978 100644
--- a/CMDPARSE.ASM
+++ b/CMDPARSE.ASM
@@ -1,80 +1,96 @@
 
 ; HL - exe-prefix
 ; IX - pointers at work buffers
-EX_COMMAND_LINE
-	INC	HL
-NEXTPR	LD	DE,ARGCBUF
-	LD	BC,Dss.EX_Path.GSWITCH
-	RST	ToDSS
-	PUSH	AF
-	PUSH	HL
-	LD	A,(ARGCBUF)
-	OR	A
-	JR	Z,EOCL		;end of command line
-	CP	"-"
-	JR	Z,ITCKEY
-	CP	"/"
-	JR	Z,ITCKEY
-	LD	HL,ARGCBUF
-	LD	E,(IX+0)
-	LD	D,(IX+1)
-	INC	IX
-	INC	IX
-	LD	A,D
-	OR	E
-	JR	Z,CL_FAILURE
-;	LD	A,1
-;	LD	(NAME_FLG),A
-MOVNAME	LD	A,(HL)
-	LDI
-	OR	A
-	JR	NZ,MOVNAME
-EOCL	POP	HL
-	POP	AF
-	JR	NC,NEXTPR
-	RET
+EX_COMMAND_LINE:
+		INC	HL
+.NEXTPR:	LD	DE,ARGCBUF
+		LD	BC,Dss.EX_Path.GSWITCH
+		RST	ToDSS
+		PUSH	AF
+		PUSH	HL
+		LD	A,(ARGCBUF)
+		OR	A
+		JR	Z,.EOCL		;end of command line
+		CP	"-"
+		JR	Z,.ITCKEY
+		CP	"/"
+		JR	Z,.ITCKEY
+		LD	HL,ARGCBUF
+		LD	E,(IX+0)
+		LD	D,(IX+1)
+		INC	IX
+		INC	IX
+		LD	A,D
+		OR	E
+		JR	Z,.CL_FAILURE
+		;LD	A,1
+		;LD	(NAME_FLG),A
+.MOVNAME:	LD	A,(HL)
+		LDI
+		OR	A
+		JR	NZ,.MOVNAME
+		;
+.EOCL:		POP	HL
+		POP	AF
+		JR	NC,.NEXTPR
+		RET
+		;
+.CL_FAILURE:	POP	HL
+		POP	AF
+		RET
 
-CL_FAILURE
-	POP	HL
-	POP	AF
-	RET
-
-ITCKEY:	LD	A,(ARGCBUF+1)
-	CP	"5"
-	JR	NC,.HELP
-	CP	"1"
-	JR	NC,.number
-	; ERROR
-	LD	HL,ARGCBUF+1
-	CALL	PUTVAR
-	LD	A,MSG_UNK_DEVICE_NUMBER
-	CALL	MESSAGE
-	LD	A,1
-	LD	(STOPMODE),A
-	JR	EOCL
-	;
-.number:;
-	SUB	A,'1'
-	OR	#C0
-	LD	(CDDRIVE),A
-	LD	C,BIOS.DRV_RESET
-	RST	ToBIOS
-	JR	NC,EOCL
-	;
-	LD	HL,ARGCBUF+1
-	CALL	PUTVAR
-	LD	A,MSG_NO_CDROM
-	CALL	MESSAGE
-	LD	A,1
-	LD	(STOPMODE),A	
-	SCF
-	JR	CL_FAILURE
-	;
-.HELP:	LD	A,MSG_USAGE
-	CALL	MESSAGE
-	LD	A,1
-	LD	(STOPMODE),A
-	JR	EOCL
+.ITCKEY:	LD	A,(ARGCBUF+1)
+		CP	"5"
+		JR	NC,.HELP
+		CP	"1"
+		JR	NC,.number
+		; ERROR
+		LD	HL,ARGCBUF+1
+		CALL	PUTVAR
+		LD	A,MSG_UNK_DEVICE_NUMBER
+		CALL	MESSAGE
+		LD	A,1
+		LD	(STOPMODE),A
+		JR	.EOCL
+		;
+.number:	SUB	'1'
+		OR	#C0
+		;
+		PUSH	IX
+		PUSH	AF
+		CALL	RESTORE_STATE
+		XOR	A
+		LD	(RESTORE_STATE.set_par),A
+		POP	AF
+		LD	(CDDRIVE),A
+		LD	C,BIOS.DRV_DETECT
+		RST	ToBIOS
+		POP	IX
+		JR	NC,.EOCL
+		;
+		CP	BIOS.Error.ATAPI.UnitAttention
+		JR	NZ,.error
+		;
+		LD	A,(CDDRIVE)
+		PUSH	IX
+		CALL	SAVE_MEDIA_CHANGED
+		POP	IX
+		JR	NC,.EOCL
+		;
+.error:		LD	HL,ARGCBUF+1
+		CALL	PUTVAR
+		LD	A,MSG_NO_CDROM
+		CALL	MESSAGE
+		LD	A,1
+		LD	(STOPMODE),A	
+		SCF
+		JR	.CL_FAILURE
+		;
+.HELP:		LD	A,MSG_USAGE
+		CALL	MESSAGE
+		LD	A,1
+		LD	(STOPMODE),A
+		JR	.EOCL
 
 
 
diff --git a/COMMAND.ASM b/COMMAND.ASM
index ccd493d..25c0816 100644
--- a/COMMAND.ASM
+++ b/COMMAND.ASM
@@ -91,7 +91,7 @@ CHELP:	LD	A,MSG_USAGE
 CCLOSE:	LD	A,MSG_TRAY_CLOSE
 	CALL	MESSAGE
 	LD	A,(CDDRIVE)
-	LD	BC,BIOS.DRV_EXTENDED.CD_Close
+	LD	BC,BIOS.DRV_EXTENDED.ATAPI_Close
 	RST	ToBIOS
 	LD	A,MSG_DONE
 	JP	MESSAGE
@@ -99,7 +99,7 @@ CCLOSE:	LD	A,MSG_TRAY_CLOSE
 COPEN:	LD	A,MSG_TRAY_OPEN
 	CALL	MESSAGE
 	LD	A,(CDDRIVE)
-	LD	BC,BIOS.DRV_EXTENDED.CD_Eject
+	LD	BC,BIOS.DRV_EXTENDED.ATAPI_Eject
 	RST	ToBIOS
 	LD	A,MSG_DONE
 	JP	MESSAGE
diff --git a/Cd_dos.asm b/Cd_dos.asm
index f635791..aca4eb7 100644
--- a/Cd_dos.asm
+++ b/Cd_dos.asm
@@ -63,7 +63,7 @@ FM_BUF	DB	".       "	;+00 NAME
 	DB	#00		;+43 EMPTY
 END_FM
 ;End of	FM
-	DS	44*2
+;	DS	44*2
 
 FM_SIZE	EQU	END_FM-FM_BUF
 
@@ -159,20 +159,19 @@ CHANGEDISK:	LD	A,(CDDRIVE)
 		RET 		
 		;
 .drv_change:	LD	A,(CDDRIVE)
-		LD	C,BIOS.DRV_GET_PAR
-		RST	ToBIOS
+		CALL	SAVE_MEDIA_CHANGED
 		;
 .cont:		CALL	INITDISK
 		RET	C
 		AND	A
 		RET 
 
-NDISK11	CP	BIOS.Error.ATAPI.NotReady
-	SCF 
-	RET	NZ
-	;
-	LD	A,DSS_Error.sys.NOT_READY
-	RET 
+; NDISK11	CP	BIOS.Error.ATAPI.NotReady
+; 	SCF 
+; 	RET	NZ
+; 	;
+; 	LD	A,DSS_Error.sys.NOT_READY
+; 	RET 
 
 INITDISK:
 	LD	A,DIRPAGE
diff --git a/Shared_Includes b/Shared_Includes
index 857938d..a0e68ce 160000
--- a/Shared_Includes
+++ b/Shared_Includes
@@ -1 +1 @@
-Subproject commit 857938d1dbf3b332a5e9e8ccabfee531eb3848fa
+Subproject commit a0e68ce3a19bd47537585e49bfbf5e45fab197a1