diff --git a/src/dos/cdrom.h b/src/dos/cdrom.h
index 241839be..6242bc42 100644
--- a/src/dos/cdrom.h
+++ b/src/dos/cdrom.h
@@ -31,6 +31,11 @@ typedef struct SMSF {
 	unsigned char fr;
 } TMSF;
 
+typedef struct SCtrl {
+	Bit8u	out[4];			// output channel
+	Bit8u	vol[4];			// channel volume
+} TCtrl;
+
 extern int CDROM_GetMountType(char* path, int force);
 
 class CDROM_Interface
@@ -52,6 +57,7 @@ public:
 	virtual bool	PlayAudioSector		(unsigned long start,unsigned long len) = 0;
 	virtual bool	PauseAudio			(bool resume) = 0;
 	virtual bool	StopAudio			(void) = 0;
+	virtual void	ChannelControl		(TCtrl ctrl) = 0;
 	
 	virtual bool	ReadSectors			(PhysPt buffer, bool raw, unsigned long sector, unsigned long num) = 0;
 
@@ -76,6 +82,7 @@ public:
 	virtual bool	PlayAudioSector		(unsigned long start,unsigned long len);
 	virtual bool	PauseAudio			(bool resume);
 	virtual bool	StopAudio			(void);
+	virtual void	ChannelControl		(TCtrl ctrl) { return; };
 	virtual bool	ReadSectors			(PhysPt /*buffer*/, bool /*raw*/, unsigned long /*sector*/, unsigned long /*num*/) { return false; };
 	virtual bool	LoadUnloadMedia		(bool unload);
 
@@ -101,6 +108,7 @@ public:
 	bool	PlayAudioSector		(unsigned long /*start*/,unsigned long /*len*/) { return true; };
 	bool	PauseAudio			(bool /*resume*/) { return true; };
 	bool	StopAudio			(void) { return true; };
+	void	ChannelControl		(TCtrl ctrl) { return; };
 	bool	ReadSectors			(PhysPt /*buffer*/, bool /*raw*/, unsigned long /*sector*/, unsigned long /*num*/) { return true; };
 	bool	LoadUnloadMedia		(bool /*unload*/) { return true; };
 };	
@@ -166,6 +174,7 @@ public:
 	bool	PlayAudioSector		(unsigned long start,unsigned long len);
 	bool	PauseAudio		(bool resume);
 	bool	StopAudio		(void);
+	void	ChannelControl		(TCtrl ctrl);
 	bool	ReadSectors		(PhysPt buffer, bool raw, unsigned long sector, unsigned long num);
 	bool	LoadUnloadMedia		(bool unload);
 	bool	ReadSector		(Bit8u *buffer, bool raw, unsigned long sector);
@@ -188,6 +197,8 @@ static  struct imagePlayer {
 		int     targetFrame;
 		bool    isPlaying;
 		bool    isPaused;
+		bool    ctrlUsed;
+		TCtrl   ctrlData;
 	} player;
 	
 	void 	ClearTracks();
@@ -234,6 +245,7 @@ public:
 	bool	PlayAudioSector		(unsigned long start,unsigned long len);
 	bool	PauseAudio			(bool resume);
 	bool	StopAudio			(void);
+	void	ChannelControl		(TCtrl ctrl) { return; };
 	
 	bool	ReadSectors			(PhysPt buffer, bool raw, unsigned long sector, unsigned long num);
 
@@ -284,6 +296,7 @@ public:
 	bool	PlayAudioSector		(unsigned long start,unsigned long len);
 	bool	PauseAudio			(bool resume);
 	bool	StopAudio			(void);
+	void	ChannelControl		(TCtrl ctrl);
 	
 	bool	ReadSector			(Bit8u *buffer, bool raw, unsigned long sector);
 	bool	ReadSectors			(PhysPt buffer, bool raw, unsigned long sector, unsigned long num);
@@ -338,6 +351,8 @@ private:
 		int     targetFrame;
 		bool    isPlaying;
 		bool    isPaused;
+		bool    ctrlUsed;
+		TCtrl   ctrlData;
 	} player;
 
 };
diff --git a/src/dos/cdrom_image.cpp b/src/dos/cdrom_image.cpp
index d7bcfa66..26375c9a 100644
--- a/src/dos/cdrom_image.cpp
+++ b/src/dos/cdrom_image.cpp
@@ -131,7 +131,7 @@ int CDROM_Interface_Image::AudioFile::getLength()
 int CDROM_Interface_Image::refCount = 0;
 CDROM_Interface_Image* CDROM_Interface_Image::images[26];
 CDROM_Interface_Image::imagePlayer CDROM_Interface_Image::player = {
-	NULL, NULL, NULL, {0}, 0, 0, 0, false, false };
+	NULL, NULL, NULL, {0}, 0, 0, 0, false, false, false, {0} };
 
 	
 CDROM_Interface_Image::CDROM_Interface_Image(Bit8u subUnit)
@@ -259,6 +259,12 @@ bool CDROM_Interface_Image::StopAudio(void)
 	return true;
 }
 
+void CDROM_Interface_Image::ChannelControl(TCtrl ctrl)
+{
+	player.ctrlUsed = (ctrl.out[0]!=0 || ctrl.out[1]!=1 || ctrl.vol[0]<0xfe || ctrl.vol[1]<0xfe);
+	player.ctrlData = ctrl;
+}
+
 bool CDROM_Interface_Image::ReadSectors(PhysPt buffer, bool raw, unsigned long sector, unsigned long num)
 {
 	int sectorSize = raw ? RAW_SECTOR_SIZE : COOKED_SECTOR_SIZE;
@@ -336,6 +342,16 @@ void CDROM_Interface_Image::CDAudioCallBack(Bitu len)
 		}
 	}
 	SDL_mutexV(player.mutex);
+	if (player.ctrlUsed) {
+		Bit16s sample0,sample1;
+		Bit16s * samples=(Bit16s *)&player.buffer;
+		for (Bitu pos=0;pos<len/4;pos++) {
+			sample0=samples[pos*2+player.ctrlData.out[0]];
+			sample1=samples[pos*2+player.ctrlData.out[1]];
+			samples[pos*2+0]=(Bit16s)(sample0*player.ctrlData.vol[0]/255.0);
+			samples[pos*2+1]=(Bit16s)(sample1*player.ctrlData.vol[1]/255.0);
+		}
+	}
 #if defined(WORDS_BIGENDIAN)
 	player.channel->AddSamples_s16_nonnative(len/4,(Bit16s *)player.buffer);
 #else
diff --git a/src/dos/cdrom_ioctl_win32.cpp b/src/dos/cdrom_ioctl_win32.cpp
index 9044e543..c12f7526 100644
--- a/src/dos/cdrom_ioctl_win32.cpp
+++ b/src/dos/cdrom_ioctl_win32.cpp
@@ -175,7 +175,7 @@ bool CDROM_Interface_Ioctl::mci_CDPosition(int *position) {
 
 
 CDROM_Interface_Ioctl::dxPlayer CDROM_Interface_Ioctl::player = {
-	NULL, NULL, NULL, 0, 0,	0, 0, 0, false,	false };
+	NULL, NULL, NULL, {0}, 0, 0, 0, false, false, false, {0} };
 
 CDROM_Interface_Ioctl::CDROM_Interface_Ioctl(cdioctl_cdatype ioctl_cda) {
 	pathname[0] = 0;
@@ -462,6 +462,12 @@ bool CDROM_Interface_Ioctl::StopAudio(void) {
 	return bStat>0;
 }
 
+void CDROM_Interface_Ioctl::ChannelControl(TCtrl ctrl)
+{
+	player.ctrlUsed = (ctrl.out[0]!=0 || ctrl.out[1]!=1 || ctrl.vol[0]<0xfe || ctrl.vol[1]<0xfe);
+	player.ctrlData = ctrl;
+}
+
 bool CDROM_Interface_Ioctl::LoadUnloadMedia(bool unload) {
 	BOOL bStat; 
 	DWORD byteCount;
@@ -553,6 +559,16 @@ void CDROM_Interface_Ioctl::dx_CDAudioCallBack(Bitu len) {
 		}
 	}
 	SDL_mutexV(player.mutex);
+	if (player.ctrlUsed) {
+		Bit16s sample0,sample1;
+		Bit16s * samples=(Bit16s *)&player.buffer;
+		for (Bitu pos=0;pos<len/4;pos++) {
+			sample0=samples[pos*2+player.ctrlData.out[0]];
+			sample1=samples[pos*2+player.ctrlData.out[1]];
+			samples[pos*2+0]=(Bit16s)(sample0*player.ctrlData.vol[0]/255.0);
+			samples[pos*2+1]=(Bit16s)(sample1*player.ctrlData.vol[1]/255.0);
+		}
+	}
 	player.channel->AddSamples_s16(len/4,(Bit16s *)player.buffer);
 	memmove(player.buffer, &player.buffer[len], player.bufLen - len);
 	player.bufLen -= len;
diff --git a/src/dos/dos_mscdex.cpp b/src/dos/dos_mscdex.cpp
index 5800fd1f..b0f011f6 100644
--- a/src/dos/dos_mscdex.cpp
+++ b/src/dos/dos_mscdex.cpp
@@ -152,6 +152,7 @@ private:
 		bool	locked;			// drive locked ?
 		bool	lastResult;		// last operation success ?
 		Bit32u	volumeSize;		// for media change
+		TCtrl	audioCtrl;		// audio channel control
 	} TDriveInfo;
 
 	Bit16u				defaultBufSeg;
@@ -160,6 +161,9 @@ private:
 	
 public:
 	Bit16u		rootDriverHeaderSeg;
+
+	bool		ChannelControl		(Bit8u subUnit, TCtrl ctrl);
+	bool		GetChannelControl	(Bit8u subUnit, TCtrl& ctrl);
 };
 
 CMscdex::CMscdex(void) {
@@ -391,6 +395,11 @@ int CMscdex::AddDrive(Bit16u _drive, char* physicalPath, Bit8u& subUnit)
 		subUnit = (Bit8u)numDrives;
 	}
 	numDrives++;
+	// init channel control
+	for (Bit8u chan=0;chan<4;chan++) {
+		dinfo[subUnit].audioCtrl.out[chan]=chan;
+		dinfo[subUnit].audioCtrl.vol[chan]=0xff;
+	}
 	// stop audio
 	StopAudio(subUnit);
 	return result;
@@ -463,7 +472,7 @@ bool CMscdex::PlayAudioSector(Bit8u subUnit, Bit32u sector, Bit32u length)
 	if (subUnit>=numDrives) return false;
 	// If value from last stop is used, this is meant as a resume
 	// better start using resume command
-	if (dinfo[subUnit].audioPaused && (sector==dinfo[subUnit].audioStart)) {
+	if (dinfo[subUnit].audioPaused && (sector==dinfo[subUnit].audioStart) && (dinfo[subUnit].audioEnd!=0)) {
 		dinfo[subUnit].lastResult = cdrom[subUnit]->PauseAudio(true);
 	} else 
 		dinfo[subUnit].lastResult = cdrom[subUnit]->PlayAudioSector(sector,length);
@@ -800,6 +809,7 @@ Bit32u CMscdex::GetDeviceStatus(Bit8u subUnit)
 					(dinfo[subUnit].locked	<< 1)	|	// Drive is locked ?
 					(1<<2)							|	// raw + cooked sectors
 					(1<<4)							|	// Can read sudio
+					(1<<8)							|	// Can control audio
 					(1<<9)							|	// Red book & HSG
 					((!media) << 11);					// Drive is empty ?
 	return status;
@@ -864,6 +874,22 @@ void CMscdex::InitNewMedia(Bit8u subUnit) {
 	}
 }
 
+bool CMscdex::ChannelControl(Bit8u subUnit, TCtrl ctrl) {
+	if (subUnit>=numDrives) return false;
+	// adjust strange channel mapping
+	if (ctrl.out[0]>1) ctrl.out[0]=0;
+	if (ctrl.out[1]>1) ctrl.out[1]=1;
+	dinfo[subUnit].audioCtrl=ctrl;
+	cdrom[subUnit]->ChannelControl(ctrl);
+	return true;
+}
+
+bool CMscdex::GetChannelControl(Bit8u subUnit, TCtrl& ctrl) {
+	if (subUnit>=numDrives) return false;
+	ctrl=dinfo[subUnit].audioCtrl;
+	return true;
+}
+
 static CMscdex* mscdex = 0;
 static PhysPt curReqheaderPtr = 0;
 
@@ -893,6 +919,14 @@ static Bit16u MSCDEX_IOCTL_Input(PhysPt buffer,Bit8u drive_unit) {
 						return 0x03;		// invalid function
 					}
 				   }break;
+		case 0x04 : /* Audio Channel control */
+					TCtrl ctrl;
+					if (!mscdex->GetChannelControl(drive_unit,ctrl)) return 0x01;
+					for (Bit8u chan=0;chan<4;chan++) {
+						mem_writeb(buffer+chan*2+1,ctrl.out[chan]);
+						mem_writeb(buffer+chan*2+2,ctrl.vol[chan]);
+					}
+					break;
 		case 0x06 : /* Get Device status */
 					mem_writed(buffer+1,mscdex->GetDeviceStatus(drive_unit)); 
 					break;
@@ -984,7 +1018,13 @@ static Bit16u MSCDEX_IOCTL_Optput(PhysPt buffer,Bit8u drive_unit) {
 					if (!mscdex->LoadUnloadMedia(drive_unit,true)) return 0x02;
 					break;
 		case 0x03: //Audio Channel control
-					MSCDEX_LOG("MSCDEX: Audio Channel Control used. Not handled. Faking succes!");
+					TCtrl ctrl;
+					for (Bit8u chan=0;chan<4;chan++) {
+						ctrl.out[chan]=mem_readb(buffer+chan*2+1);
+						ctrl.vol[chan]=mem_readb(buffer+chan*2+2);
+					}
+					if (!mscdex->ChannelControl(drive_unit,ctrl)) return 0x01;
+					break;
 		case 0x01 : // (un)Lock door 
 					// do nothing -> report as success
 					break;