diff --git a/src/apps/mediaplayer/Controller.cpp b/src/apps/mediaplayer/Controller.cpp
index e5f39263ab..5757492c32 100644
--- a/src/apps/mediaplayer/Controller.cpp
+++ b/src/apps/mediaplayer/Controller.cpp
@@ -25,6 +25,7 @@
 #include <MediaTrack.h>
 
 #include "Controller.h"
+#include "ControllerView.h"
 #include "VideoView.h"
 #include "SoundOutput.h"
 
@@ -45,6 +46,7 @@ HandleError(const char *text, status_t err)
 
 Controller::Controller()
  :	fVideoView(NULL)
+ ,	fControllerView(NULL)
  ,	fName()
  ,	fPaused(false)
  ,	fStopped(true)
@@ -61,6 +63,9 @@ Controller::Controller()
  ,	fStopAudioPlayback(false)
  ,	fStopVideoPlayback(false)
  ,	fSoundOutput(NULL)
+ ,	fSeekAudio(false)
+ ,	fSeekVideo(false)
+ ,	fSeekPosition(0)
 {
 }
 
@@ -87,6 +92,13 @@ Controller::SetVideoView(VideoView *view)
 }
 
 
+void
+Controller::SetControllerView(ControllerView *view)
+{
+	fControllerView = view;
+}
+
+
 status_t
 Controller::SetTo(const entry_ref &ref)
 {
@@ -221,7 +233,7 @@ Controller::Duration()
 {
 	bigtime_t a = fAudioTrack ? fAudioTrack->Duration() : 0;
 	bigtime_t v = fVideoTrack ? fVideoTrack->Duration() : 0;
-	printf("Controller::Duration: audio %.6f, video %.6f", a / 1000000.0, v / 1000000.0);
+//	printf("Controller::Duration: audio %.6f, video %.6f\n", a / 1000000.0, v / 1000000.0);
 	return max_c(a, v);
 }
 
@@ -255,11 +267,36 @@ Controller::VolumeDown()
 void
 Controller::SetVolume(float value)
 {
+	printf("Controller::SetVolume %.4f\n", value);
 	if (fSoundOutput) // hack...
 		fSoundOutput->SetVolume(value);
 }
 
 
+void
+Controller::SetPosition(float value)
+{
+	printf("Controller::SetPosition %.4f\n", value);
+	fSeekPosition = bigtime_t(value * Duration());
+	fSeekAudio = true;
+	fSeekVideo = true;
+}
+
+
+void
+Controller::UpdateVolume(float value)
+{
+	fControllerView->SetVolume(value);
+}
+
+
+void
+Controller::UpdatePosition(float value)
+{
+	fControllerView->SetPosition(value);
+}
+
+
 bool
 Controller::IsOverlayActive()
 {
@@ -365,14 +402,28 @@ Controller::AudioPlayThread()
 	
 	SoundOutput out(fName.String(), fmt.u.raw_audio);
 	
+	out.SetVolume(1.0);
+	UpdateVolume(1.0);
+	
+	
 	int frame_size = (fmt.u.raw_audio.format & 0xf) * fmt.u.raw_audio.channel_count;
 	uint8 buffer[fmt.u.raw_audio.buffer_size];
 	int64 frames;
 	media_header mh;
 	
 	fSoundOutput = &out;
-	while (!fStopAudioPlayback && B_OK == fAudioTrack->ReadFrames(buffer, &frames, &mh)) {
-		out.Play(buffer, frames * frame_size);
+	while (!fStopAudioPlayback) {
+		if (B_OK == fAudioTrack->ReadFrames(buffer, &frames, &mh)) {
+			out.Play(buffer, frames * frame_size);
+			UpdatePosition(mh.start_time / (float)Duration());
+		} else {
+			snooze(50000);
+		}
+		if (fSeekAudio) {
+			bigtime_t pos = fSeekPosition;
+			fAudioTrack->SeekToTime(&pos);
+			fSeekAudio = false;
+		}
 	}
 	fSoundOutput = NULL;
 }
diff --git a/src/apps/mediaplayer/Controller.h b/src/apps/mediaplayer/Controller.h
index ac069edb5e..ff6714d225 100644
--- a/src/apps/mediaplayer/Controller.h
+++ b/src/apps/mediaplayer/Controller.h
@@ -29,6 +29,7 @@ class BMediaFile;
 class BMediaTrack;
 class SoundOutput;
 class VideoView;
+class ControllerView;
 
 class Controller
 {
@@ -55,6 +56,7 @@ public:
 	bool					IsPaused();
 
 	void					SetVideoView(VideoView *view);
+	void					SetControllerView(ControllerView *view);
 	
 	bool					IsOverlayActive();
 
@@ -66,6 +68,11 @@ public:
 	void					VolumeDown();
 	
 	void					SetVolume(float value);
+	
+	void					SetPosition(float value);
+	
+	void					UpdateVolume(float value);
+	void					UpdatePosition(float value);
 
 private:
 	static int32			audio_play_thread(void *self);
@@ -81,6 +88,7 @@ private:
 
 private:
 	VideoView *				fVideoView;
+	ControllerView *		fControllerView;
 	BString					fName;
 	bool					fPaused;
 	bool					fStopped;
@@ -99,6 +107,9 @@ private:
 	volatile bool			fStopAudioPlayback;
 	volatile bool			fStopVideoPlayback;
 	SoundOutput	*			fSoundOutput;
+	volatile bool			fSeekAudio;
+	volatile bool			fSeekVideo;
+	volatile bigtime_t		fSeekPosition;
 };
 
 
diff --git a/src/apps/mediaplayer/ControllerView.cpp b/src/apps/mediaplayer/ControllerView.cpp
index 303864b4b9..5098cdfa29 100644
--- a/src/apps/mediaplayer/ControllerView.cpp
+++ b/src/apps/mediaplayer/ControllerView.cpp
@@ -152,5 +152,6 @@ ControllerView::PositionChanged(float value)
 {
 	printf("ControllerView::PositionChanged(%.2f)\n", value);
 	// 0.0 ... 1.0
+	fController->SetPosition(value);
 }
 
diff --git a/src/apps/mediaplayer/MainWin.cpp b/src/apps/mediaplayer/MainWin.cpp
index 8b37e2add7..c1ae350ca2 100644
--- a/src/apps/mediaplayer/MainWin.cpp
+++ b/src/apps/mediaplayer/MainWin.cpp
@@ -140,6 +140,7 @@ MainWin::MainWin()
 //	fVideoView->ResizeTo(fBackground->Bounds().Width(), fBackground->Bounds().Height() - fMenuBarHeight - fControlsHeight);
 	
 	fController->SetVideoView(fVideoView);
+	fController->SetControllerView(fControls);
 	fVideoView->IsOverlaySupported();
 	
 	printf("fMenuBarHeight %d\n", fMenuBarHeight);
diff --git a/src/apps/mediaplayer/TransportControlGroup.cpp b/src/apps/mediaplayer/TransportControlGroup.cpp
index 9db616e66d..62845bf098 100644
--- a/src/apps/mediaplayer/TransportControlGroup.cpp
+++ b/src/apps/mediaplayer/TransportControlGroup.cpp
@@ -48,7 +48,7 @@ enum {
 #define kVolumeDbExpNegative 1.9	// for dB values < 0
 
 #define kVolumeFactor	1000
-#define kPositionFactor	65535
+#define kPositionFactor	3000
 
 // constructor
 TransportControlGroup::TransportControlGroup(BRect frame)
@@ -320,6 +320,9 @@ TransportControlGroup::_GainToDb(float gain)
 void
 TransportControlGroup::SetEnabled(uint32 buttons)
 {
+//	if (B_OK != LockLooperWithTimeout(50000))
+	if (!LockLooper())
+		return;
 	fSeekSlider->SetEnabled(buttons & SEEK_ENABLED);
 
 	fVolumeSlider->SetEnabled(buttons & VOLUME_ENABLED);
@@ -332,6 +335,7 @@ TransportControlGroup::SetEnabled(uint32 buttons)
 
 	fPlayPause->SetEnabled(buttons & PLAYBACK_ENABLED);
 	fStop->SetEnabled(buttons & PLAYBACK_ENABLED);
+	UnlockLooper();
 }
 
 // #pragma mark -
@@ -340,6 +344,9 @@ TransportControlGroup::SetEnabled(uint32 buttons)
 void
 TransportControlGroup::SetPlaybackState(uint32 state)
 {
+//	if (B_OK != LockLooperWithTimeout(50000))
+	if (!LockLooper())
+		return;
 	switch (state) {
 		case PLAYBACK_STATE_PLAYING:
 			fPlayPause->SetPlaying();
@@ -351,14 +358,19 @@ TransportControlGroup::SetPlaybackState(uint32 state)
 			fPlayPause->SetStopped();
 			break;
 	}
+	UnlockLooper();
 }
 
 // SetSkippable
 void
 TransportControlGroup::SetSkippable(bool backward, bool forward)
 {
+//	if (B_OK != LockLooperWithTimeout(50000))
+	if (!LockLooper())
+		return;
 	fSkipBack->SetEnabled(backward);
 	fSkipForward->SetEnabled(forward);
+	UnlockLooper();
 }
 
 // #pragma mark -
@@ -367,29 +379,43 @@ TransportControlGroup::SetSkippable(bool backward, bool forward)
 void
 TransportControlGroup::SetAudioEnabled(bool enabled)
 {
+//	if (B_OK != LockLooperWithTimeout(50000))
+	if (!LockLooper())
+		return;
 	fMute->SetEnabled(enabled);
 	fVolumeSlider->SetEnabled(enabled);
+	UnlockLooper();
 }
 
 // SetMuted
 void
 TransportControlGroup::SetMuted(bool mute)
 {
+//	if (B_OK != LockLooperWithTimeout(50000))
+	if (!LockLooper())
+		return;
 	fVolumeSlider->SetMuted(mute);
+	UnlockLooper();
 }
 
 
 void
 TransportControlGroup::SetVolume(float value)
 {
+	if (B_OK != LockLooperWithTimeout(50000))
+		return;
 	fVolumeSlider->SetValue(_DbToGain(_ExponentialToLinear(_GainToDb(value))) * kVolumeFactor);
+	UnlockLooper();
 }
 
 
 void
 TransportControlGroup::SetPosition(float value)
 {
+	if (B_OK != LockLooperWithTimeout(50000))
+		return;
 	fSeekSlider->SetPosition(value);
+	UnlockLooper();
 }