diff --git a/bin/CDX.EXE b/bin/CDX.EXE
index 114afa2..f990cf2 100644
Binary files a/bin/CDX.EXE and b/bin/CDX.EXE differ
diff --git a/bin/CDX.TXT b/bin/CDX.TXT
index 31fb6ab..71b1318 100644
--- a/bin/CDX.TXT
+++ b/bin/CDX.TXT
@@ -1,5 +1,5 @@
 
-CDROM Extension utility v1.03
+CDROM Extension utility v1.04
 
 (c) Sprinter Team, 2025
 
@@ -20,6 +20,10 @@ LIST [\cd\path\] [pattern] -- 
 COPY \source  \destination -- копировать файлы
 DUMP sector [offset] -- показать дамп сектора диска
 SEND hexline ["." separator] -- отправка ATAPI пакета
+READTOC -- чтение TOC Audio-CD и показ статуса чтения и количества
+           дорожек на диске.
+CLOSETOC -- аналогично READTOC, но перед чтением принудительно
+            подается команда закрытия трея.
 
 Ключи:
 
@@ -55,6 +59,10 @@ LIST [\cd\path\] [pattern] -- show file(s)
 COPY \source  \destination -- copy file(s) from CD-ROM to another disk
 DUMP sector [offset] -- show sector dump from CD-ROM
 SEND hexline ["." separator] -- send ATAPI packet
+READTOC -- reading the TOC Audio CD and showing the reading status and quantity
+           tracks on the disc.
+CLOSETOC -- similar to READTOC, but forced before reading
+            the command to close the tray is given.
 
 Switches:
 -h,? -- help page
diff --git a/bin/history.txt b/bin/history.txt
index f96071b..c1414db 100644
--- a/bin/history.txt
+++ b/bin/history.txt
@@ -1,5 +1,9 @@
 
+Версия 1.04
+- для тестирования Audio-CD и BIOS добавлены команды
+  READTOC и CLOSETOC.
+
 Версия 1.03
-- поправлен cdx.txt
+- поправлен cdx.txt.
 - добалена возможность послать ATAPI пакет.
-- если нет диска в приводе, то не пишет ошибку, что нет привода
+- если нет диска в приводе, то не пишет ошибку, что нет привода.
diff --git a/cdx.a80 b/cdx.a80
index 305d131..f82e191 100644
--- a/cdx.a80
+++ b/cdx.a80
@@ -1,5 +1,5 @@
 
-; LAST UPDATE: 07.07.2025 savelij
+; LAST UPDATE: 13.07.2025 savelij
 
 		include macros.a80
 		include bios_sp.a80
@@ -389,23 +389,25 @@ MSG0		DB	0
 		DZ	"Closing tray..."
 		;        01234567890123456789012345678901234567890123456789012345678901234567890123456789
  _SETVAR .MSG_USAGE
-		DB	"  Usage: CDX.EXE [-switches] [command] [param1] [param2]\r\n\r\n"
-		DB	"Commands:\r\n"
-		DB	" CDX OPEN                            - Open tray\r\n"
-		DB	" CDX CLOSE                           - Close tray\r\n"
-		DB	" CDX LIST [\\cd_path\\][pattern]       - Show CDROM filelist\r\n"
-		DB	" CDX COPY \\source d:\\destination\\    - Copy file(s) from CDROM to another disk\r\n"
-		DB	" CDX DUMP sector [offset]            - Show sector dump from CDROM\r\n"
-		DB	" CDX SEND hexline [\".\" separator]    - Send ATAPI command\r\n"
-		DB	" example:\r\n"
-		DB	" CDX SEND 4B.000000.0000000000000000.00000000\r\n"
-		DB	"\r\n"
-		DB	"Switches:\r\n"
-		DB	" -1    CDROM installed as Primary IDE Master device\r\n"
-		DB	" -2    CDROM installed as Primary IDE Slave device\r\n"
-		DB	" -3    CDROM installed as Secondary IDE Master device\r\n"
-		DB	" -4    CDROM installed as Secondary IDE Slave device\r\n"
-		DZ	" -h,?	Help page\r\n"
+		DB "  Usage: CDX.EXE [-switches] [command] [param1] [param2]\r\n\r\n"
+		DB "Commands:\r\n"
+		DB " CDX OPEN                            - Open tray\r\n"
+		DB " CDX CLOSE                           - Close tray\r\n"
+		DB " CDX LIST [\\cd_path\\][pattern]       - Show CDROM filelist\r\n"
+		DB " CDX COPY \\source d:\\destination\\    - Copy file(s) from CDROM to another disk\r\n"
+		DB " CDX DUMP sector [offset]            - Show sector dump from CDROM\r\n"
+		DB " CDX SEND hexline [\".\" separator]    - Send ATAPI command\r\n"
+		DB " example:\r\n"
+		DB " CDX SEND 4B.000000.0000000000000000.00000000\r\n"
+		DB "\r\n"
+		DB " CDX READTOC                         - Read TOC Audio-CD\r\n"
+		DB " CDX CLOSETOC                        - Close tray and read TOC Audio-CD\r\n"
+		DB "Switches:\r\n"
+		DB " -1    CDROM installed as Primary IDE Master device\r\n"
+		DB " -2    CDROM installed as Primary IDE Slave device\r\n"
+		DB " -3    CDROM installed as Secondary IDE Master device\r\n"
+		DB " -4    CDROM installed as Secondary IDE Slave device\r\n"
+		DZ " -h,?	Help page\r\n"
  _SETVAR .MSG_UNK_DEVICE_NUMBER
 		DZ	"  Error: Unknown device number %1\r\n"
  _SETVAR .MSG_UNK_COMMAND
@@ -443,6 +445,15 @@ MSG0		DB	0
 		DZ "Error: packet size incorrect\r\n"
  _SETVAR .MSG_SEND_ATAPI
 		DZ "Send ATAPI packet..."
+ _SETVAR .MSG_READTOC
+		DZ "Read audio CD-ROM TOC..."
+ _SETVAR .MSG_RESULT_READTOC
+		DB "RESULT: 0x00\r\n"
+.MRR1		EQU $-4
+		DZ "Found in TOC: 0x00\r\n"
+.MRR2		EQU $-5
+ _SETVAR .MSG_CLOSETRAY_READTOC
+		DZ "Close tray and read TOC Audio-CD..."
 
 .crlf:		DZ	"\r\n"
 
diff --git a/command.a80 b/command.a80
index db072b4..feaf9a7 100644
--- a/command.a80
+++ b/command.a80
@@ -1,5 +1,5 @@
 
-; LAST UPDATE: 05.07.2025 savelij
+; LAST UPDATE: 13.07.2025 savelij
 
 COMMAND	LD	HL,BUF1
 	LD	A,(HL)
@@ -24,9 +24,9 @@ COMP01	LD	D,H
 COMP004	PUSH	BC
 	PUSH	DE
 COMP000	LD	A,(DE)
-	CP	0x61
+	CP	'a'	;0x61
 	JP	C,COMP001
-	CP	0x7B
+	CP	'z'+1	;0x7B
 	JP	NC,COMP001
 	SUB	0x20
 COMP001	CP	(HL)
@@ -69,28 +69,94 @@ COMP002	XOR	A
 	SCF
 	RET
 
-CMDLIST	DB	"CLOSE",0
-	DW	CCLOSE
-	DB	"COPY",0
-	DW	CCOPY
-	DB	"DUMP",0
-	DW	CDUMP
-	DB	"EJECT",0
-	DW	COPEN
-	DB	"HELP",0
-	DW	CHELP
-	DB	"LIST",0
-	DW	CDIR
-	DB	"OPEN",0
-	DW	COPEN
-	DB	"SECTORDUMP",0
-	DW	CDUMP
+CMDLIST		DZ "CLOSE"
+		DW CCLOSE
+		DZ "COPY"
+		DW CCOPY
+		DZ "DUMP"
+		DW CDUMP
+		DZ "EJECT"
+		DW COPEN
+		DZ "HELP"
+		DW CHELP
+		DZ "LIST"
+		DW CDIR
+		DZ "OPEN"
+		DW COPEN
+		DZ "SECTORDUMP"
+		DW CDUMP
 		DZ "SEND"
 		DW SENDPACKET
-	DB	0
+		DZ "READTOC"
+		DW READTOC
+		DZ "CLOSETOC"
+		DW CLOSETOC
+		DB 0
 
-SENDPACKET	LD	A,MSG0.MSG_SEND_ATAPI
-		CALL	MESSAGE
+RESULT		EQU DUMPBUF + 3000
+
+CLOSETOC	LD A,MSG0.MSG_CLOSETRAY_READTOC
+		CALL MESSAGE
+		LD HL,APCMD.CLOSETRAY
+		CALL SENDPAKET
+		JR READTOC.L2
+
+READTOC		LD A,MSG0.MSG_READTOC
+		CALL MESSAGE
+.L2		LD A,0xAA
+		LD (RESULT + 6),A
+		LD HL,APCMD.READTOC
+		CALL SENDPAKET
+		LD HL,RESULT-2
+		LD B,0xFF
+		LD DE,8
+.L1		INC B
+		ADD HL,DE
+		LD A,(HL)
+		CP 0xAA
+		JR NZ,.L1
+		LD A,B
+		CALL A2HEX
+		LD HL,MSG0.MRR2
+		LD (HL),B
+		INC HL
+		LD (HL),A
+		LD A,(RESULT)
+		CALL A2HEX
+		LD HL,MSG0.MRR1
+		LD (HL),B
+		INC HL
+		LD (HL),A
+		LD A,MSG0.MSG_RESULT_READTOC
+		JP MESSAGE
+
+SENDPAKET	LD DE,RESULT
+		LD A,(CDDRIVE)
+	SPBIOS BIOSF.DRV_EXTENDED,DRV_EXTENDED.ATAPI_Custom_PCMD
+		RET
+
+A2HEX		PUSH AF
+		AND %11110000
+		RRCA
+		RRCA
+		RRCA
+		RRCA
+		CALL .L2
+		LD B,A
+		POP AF
+		AND %00001111
+.L2		ADD A,'0'
+		CP '9'+1
+		RET C
+		ADD A,7
+		RET
+
+APCMD
+.READTOC	DB 0x43,0x02,0x00,0x00,0x00,0x00,0x01,0x03,0x24,0x00,0x00,0x00
+.CLOSETRAY	DB 0x1B,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+
+SENDPACKET	LD A,MSG0.MSG_SEND_ATAPI
+		CALL MESSAGE
 		CALL CONV_HEX
 		JR NC,.L1
 		LD A,MSG0.MSG_ERR_PACKET
diff --git a/vers.a80 b/vers.a80
index 86af9b1..d014385 100644
--- a/vers.a80
+++ b/vers.a80
@@ -1,4 +1,4 @@
 
-; LAST UPDATE: 05.07.2025 savelij
+; LAST UPDATE: 13.07.2025 savelij
 
-VERS		EQU "1.03"
+VERS		EQU "1.04"