diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 0b918a57..8dfaa1a9 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -1101,6 +1101,7 @@ Marco Schl
  the end of the given buffer, which has caused some unjustified "unknown picture
  type errors"
  for some improvements to cPoller
+ for implementing displaying mandatory subtitles in the SPU decoder
 
 Jürgen Schmitz <j.schmitz@web.de>
  for reporting a bug in displaying the current channel when switching via the SVDRP
diff --git a/HISTORY b/HISTORY
index 36ba52f4..c8ceb322 100644
--- a/HISTORY
+++ b/HISTORY
@@ -3278,3 +3278,5 @@ Video Disk Recorder Revision History
   Gleichmann).
 - Fixed deleting a menu item in case the next item is not selectable (thanks to
   Dino Ravnic).
+- Implemented displaying mandatory subtitles in the SPU decoder (thanks to Marco
+  Schlüßler).
diff --git a/dvbspu.c b/dvbspu.c
index a244578c..44cb7b33 100644
--- a/dvbspu.c
+++ b/dvbspu.c
@@ -8,7 +8,7 @@
  *
  * parts of this file are derived from the OMS program.
  *
- * $Id: dvbspu.c 1.10 2005/01/08 09:53:44 kls Exp $
+ * $Id: dvbspu.c 1.11 2005/01/08 09:57:03 kls Exp $
  */
 
 #include <assert.h>
@@ -227,6 +227,7 @@ cDvbSpuDecoder::cDvbSpuDecoder()
     spu = NULL;
     osd = NULL;
     spubmp = NULL;
+    allowedShow = false;
 }
 
 cDvbSpuDecoder::~cDvbSpuDecoder()
@@ -236,7 +237,7 @@ cDvbSpuDecoder::~cDvbSpuDecoder()
     delete osd;
 }
 
-void cDvbSpuDecoder::processSPU(uint32_t pts, uint8_t * buf)
+void cDvbSpuDecoder::processSPU(uint32_t pts, uint8_t * buf, bool AllowedShow)
 {
     setTime(pts);
 
@@ -252,6 +253,7 @@ void cDvbSpuDecoder::processSPU(uint32_t pts, uint8_t * buf)
     prev_DCSQ_offset = 0;
 
     clean = true;
+    allowedShow = AllowedShow;
 }
 
 void cDvbSpuDecoder::setScaleMode(cSpuDecoder::eScaleMode ScaleMode)
@@ -530,7 +532,7 @@ int cDvbSpuDecoder::setTime(uint32_t pts)
         } else if (!clean)
             state = spSHOW;
 
-        if (state == spSHOW || state == spMENU)
+        if ((state == spSHOW && allowedShow) || state == spMENU)
             Draw();
 
         if (state == spHIDE)
diff --git a/dvbspu.h b/dvbspu.h
index 078f432e..88812347 100644
--- a/dvbspu.h
+++ b/dvbspu.h
@@ -8,7 +8,7 @@
  *
  * parts of this file are derived from the OMS program.
  *
- * $Id: dvbspu.h 1.6 2004/11/06 11:42:37 kls Exp $
+ * $Id: dvbspu.h 1.7 2005/01/08 09:59:44 kls Exp $
  */
 
 #ifndef __DVBSPU_H
@@ -120,6 +120,7 @@ class cDvbSpuDecoder:public cSpuDecoder {
     uint16_t prev_DCSQ_offset;
 
     cDvbSpuBitmap *spubmp;
+    bool allowedShow;
   private:
     int cmdOffs(void) {
         return ((spu[2] << 8) | spu[3]);
@@ -147,7 +148,7 @@ class cDvbSpuDecoder:public cSpuDecoder {
     void Hide(void);
     void Draw(void);
     bool IsVisible(void) { return osd != NULL; }
-    void processSPU(uint32_t pts, uint8_t * buf);
+    void processSPU(uint32_t pts, uint8_t * buf, bool AllowedShow);
 };
 
 // --- cDvbSpuPalette -------------------------------------------
diff --git a/spu.h b/spu.h
index 053cf1a9..9ab4da5b 100644
--- a/spu.h
+++ b/spu.h
@@ -6,7 +6,7 @@
  * This code is distributed under the terms and conditions of the
  * GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
  *
- * $Id: spu.h 1.2 2004/06/12 12:56:27 kls Exp $
+ * $Id: spu.h 1.3 2005/01/08 09:58:35 kls Exp $
  */
 
 #ifndef __SPU_VDR_H
@@ -35,7 +35,7 @@ class cSpuDecoder {
     virtual void Hide(void) = 0;
     virtual void Draw(void) = 0;
     virtual bool IsVisible(void) = 0;
-    virtual void processSPU(uint32_t pts, uint8_t * buf) = 0;
+    virtual void processSPU(uint32_t pts, uint8_t * buf, bool AllowedShow = true) = 0;
 };
 
 #endif                          // __SPU_VDR_H