diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index 315f77c4b..30a713398 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -2905,7 +2905,7 @@ void DivEngine::delWave(int index) {
 }
 
 int DivEngine::addSample() {
-  if (song.sample.size()>=256) {
+  if (song.sample.size()>=32768) {
     lastError=_("too many samples!");
     return -1;
   }
@@ -2928,7 +2928,7 @@ int DivEngine::addSample() {
 }
 
 int DivEngine::addSamplePtr(DivSample* which) {
-  if (song.sample.size()>=256) {
+  if (song.sample.size()>=32768) {
     lastError=_("too many samples!");
     delete which;
     return -1;
diff --git a/src/engine/fileOpsSample.cpp b/src/engine/fileOpsSample.cpp
index 5cd1d501f..8c89d451d 100644
--- a/src/engine/fileOpsSample.cpp
+++ b/src/engine/fileOpsSample.cpp
@@ -27,7 +27,7 @@
 std::vector<DivSample*> DivEngine::sampleFromFile(const char* path) {
   std::vector<DivSample*> ret;
 
-  if (song.sample.size()>=256) {
+  if (song.sample.size()>=32768) {
     lastError="too many samples!";
     return ret;
   }
@@ -432,7 +432,7 @@ std::vector<DivSample*> DivEngine::sampleFromFile(const char* path) {
 }
 
 DivSample* DivEngine::sampleFromFileRaw(const char* path, DivSampleDepth depth, int channels, bool bigEndian, bool unsign, bool swapNibbles, int rate) {
-  if (song.sample.size()>=256) {
+  if (song.sample.size()>=32768) {
     lastError="too many samples!";
     return NULL;
   }
diff --git a/src/engine/platform/amiga.cpp b/src/engine/platform/amiga.cpp
index d7ed6b433..69d04193b 100644
--- a/src/engine/platform/amiga.cpp
+++ b/src/engine/platform/amiga.cpp
@@ -995,7 +995,7 @@ size_t DivPlatformAmiga::getSampleMemUsage(int index) {
 
 bool DivPlatformAmiga::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -1006,8 +1006,8 @@ const DivMemoryComposition* DivPlatformAmiga::getMemCompo(int index) {
 
 void DivPlatformAmiga::renderSamples(int sysID) {
   memset(sampleMem,0,2097152);
-  memset(sampleOff,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Chip Memory";
@@ -1082,3 +1082,14 @@ void DivPlatformAmiga::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformAmiga::DivPlatformAmiga() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformAmiga::~DivPlatformAmiga() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/amiga.h b/src/engine/platform/amiga.h
index 0c660b2fd..af6499e90 100644
--- a/src/engine/platform/amiga.h
+++ b/src/engine/platform/amiga.h
@@ -109,8 +109,8 @@ class DivPlatformAmiga: public DivDispatch {
 
   unsigned char volTable[64][64];
 
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
 
   unsigned short regPool[256];
 
@@ -171,6 +171,8 @@ class DivPlatformAmiga: public DivDispatch {
     const DivMemoryComposition* getMemCompo(int index);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformAmiga();
+    ~DivPlatformAmiga();
 };
 
 #endif
diff --git a/src/engine/platform/c140.cpp b/src/engine/platform/c140.cpp
index 509532d5f..559d7225f 100644
--- a/src/engine/platform/c140.cpp
+++ b/src/engine/platform/c140.cpp
@@ -602,7 +602,7 @@ size_t DivPlatformC140::getSampleMemUsage(int index) {
 
 bool DivPlatformC140::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -613,8 +613,8 @@ const DivMemoryComposition* DivPlatformC140::getMemCompo(int index) {
 
 void DivPlatformC140::renderSamples(int sysID) {
   memset(sampleMem,0,is219?524288:16777216);
-  memset(sampleOff,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -801,3 +801,14 @@ void DivPlatformC140::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformC140::DivPlatformC140() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformC140::~DivPlatformC140() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/c140.h b/src/engine/platform/c140.h
index 4b81ca412..1144491c0 100644
--- a/src/engine/platform/c140.h
+++ b/src/engine/platform/c140.h
@@ -55,8 +55,8 @@ class DivPlatformC140: public DivDispatch {
   Channel chan[24];
   DivDispatchOscBuffer* oscBuf[24];
   bool isMuted[24];
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
   bool is219;
   int totalChans;
   unsigned char groupBank[4];
@@ -117,7 +117,8 @@ class DivPlatformC140: public DivDispatch {
     void setFlags(const DivConfig& flags);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
-  private:
+    DivPlatformC140();
+    ~DivPlatformC140();
 };
 
 #endif
diff --git a/src/engine/platform/es5506.cpp b/src/engine/platform/es5506.cpp
index dde4e2f1e..51f5505e1 100644
--- a/src/engine/platform/es5506.cpp
+++ b/src/engine/platform/es5506.cpp
@@ -1435,7 +1435,7 @@ size_t DivPlatformES5506::getSampleMemUsage(int index) {
 
 bool DivPlatformES5506::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -1446,8 +1446,8 @@ const DivMemoryComposition* DivPlatformES5506::getMemCompo(int index) {
 
 void DivPlatformES5506::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity());
-  memset(sampleOffES5506,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffES5506,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample Memory";
@@ -1520,3 +1520,17 @@ void DivPlatformES5506::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformES5506::DivPlatformES5506():
+  DivDispatch(),
+  es550x_intf(),
+  es5506(*this) {
+  sampleOffES5506=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformES5506::~DivPlatformES5506() {
+  delete[] sampleOffES5506;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/es5506.h b/src/engine/platform/es5506.h
index cbbe01b4d..970fa0e5f 100644
--- a/src/engine/platform/es5506.h
+++ b/src/engine/platform/es5506.h
@@ -232,8 +232,8 @@ class DivPlatformES5506: public DivDispatch, public es550x_intf {
   bool isMuted[32];
   signed short* sampleMem; // ES5506 uses 16 bit data bus for samples
   size_t sampleMemLen;
-  unsigned int sampleOffES5506[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffES5506;
+  bool* sampleLoaded;
   struct QueuedHostIntf {
       unsigned char state;
       unsigned char step;
@@ -323,10 +323,8 @@ class DivPlatformES5506: public DivDispatch, public es550x_intf {
     virtual const char** getRegisterSheet() override;
     virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
-    DivPlatformES5506():
-      DivDispatch(),
-      es550x_intf(),
-      es5506(*this) {}
+    DivPlatformES5506();
+    ~DivPlatformES5506();
 };
 
 #endif
diff --git a/src/engine/platform/fmshared_OPN.h b/src/engine/platform/fmshared_OPN.h
index 4d51da938..cd1bef62f 100644
--- a/src/engine/platform/fmshared_OPN.h
+++ b/src/engine/platform/fmshared_OPN.h
@@ -197,6 +197,7 @@ class DivPlatformOPN: public DivPlatformFMBase {
       extSys(isExtSys),
       fbAllOps(false),
       useCombo(0) {}
+    virtual ~DivPlatformOPN() {}
   public:
     void setCombo(unsigned char combo) {
       useCombo=combo;
diff --git a/src/engine/platform/fmsharedbase.h b/src/engine/platform/fmsharedbase.h
index 2eeb9835c..0aadf9099 100644
--- a/src/engine/platform/fmsharedbase.h
+++ b/src/engine/platform/fmsharedbase.h
@@ -147,6 +147,7 @@ class DivPlatformFMBase: public DivDispatch {
       lastBusy(0),
       delay(0),
       flushFirst(false) {}
+    virtual ~DivPlatformFMBase() {}
 };
 
 #endif
diff --git a/src/engine/platform/ga20.cpp b/src/engine/platform/ga20.cpp
index 30196b5a4..b45a8a8a4 100644
--- a/src/engine/platform/ga20.cpp
+++ b/src/engine/platform/ga20.cpp
@@ -478,7 +478,7 @@ size_t DivPlatformGA20::getSampleMemUsage(int index) {
 
 bool DivPlatformGA20::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -489,8 +489,8 @@ const DivMemoryComposition* DivPlatformGA20::getMemCompo(int index) {
 
 void DivPlatformGA20::renderSamples(int sysID) {
   memset(sampleMem,0x00,getSampleMemCapacity());
-  memset(sampleOffGA20,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffGA20,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -558,3 +558,17 @@ void DivPlatformGA20::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformGA20::DivPlatformGA20():
+  DivDispatch(),
+  iremga20_intf(),
+  ga20(*this) {
+  sampleOffGA20=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformGA20::~DivPlatformGA20() {
+  delete[] sampleOffGA20;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/ga20.h b/src/engine/platform/ga20.h
index 167af3e5e..69b075475 100644
--- a/src/engine/platform/ga20.h
+++ b/src/engine/platform/ga20.h
@@ -55,8 +55,8 @@ class DivPlatformGA20: public DivDispatch, public iremga20_intf {
       val(v) {}
   };
   FixedQueue<QueuedWrite,256> writes;
-  unsigned int sampleOffGA20[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffGA20;
+  bool* sampleLoaded;
 
   int oldOut;
 
@@ -104,10 +104,8 @@ class DivPlatformGA20: public DivDispatch, public iremga20_intf {
     virtual void renderSamples(int chipID) override;
     virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
-    DivPlatformGA20():
-      DivDispatch(),
-      iremga20_intf(),
-      ga20(*this) {}
+    DivPlatformGA20();
+    ~DivPlatformGA20();
 };
 
 #endif
diff --git a/src/engine/platform/gbadma.cpp b/src/engine/platform/gbadma.cpp
index 84621e079..2a848cc09 100644
--- a/src/engine/platform/gbadma.cpp
+++ b/src/engine/platform/gbadma.cpp
@@ -448,7 +448,7 @@ size_t DivPlatformGBADMA::getSampleMemUsage(int index) {
 
 bool DivPlatformGBADMA::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -463,6 +463,8 @@ const DivMemoryComposition* DivPlatformGBADMA::getMemCompo(int index) {
 void DivPlatformGBADMA::renderSamples(int sysID) {
   size_t maxPos=getSampleMemCapacity();
   memset(sampleMem,0,maxPos);
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
   romMemCompo.entries.clear();
   romMemCompo.capacity=maxPos;
 
@@ -533,3 +535,14 @@ void DivPlatformGBADMA::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformGBADMA::DivPlatformGBADMA() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformGBADMA::~DivPlatformGBADMA() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/gbadma.h b/src/engine/platform/gbadma.h
index 45b6ae7f1..05d2c919b 100644
--- a/src/engine/platform/gbadma.h
+++ b/src/engine/platform/gbadma.h
@@ -54,8 +54,8 @@ class DivPlatformGBADMA: public DivDispatch {
   Channel chan[2];
   DivDispatchOscBuffer* oscBuf[2];
   bool isMuted[2];
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
   int outDepth;
 
   signed char* sampleMem;
@@ -93,6 +93,8 @@ class DivPlatformGBADMA: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformGBADMA();
+    ~DivPlatformGBADMA();
 
   private:
     void updateWave(int ch);
diff --git a/src/engine/platform/gbaminmod.cpp b/src/engine/platform/gbaminmod.cpp
index 435999cde..89af91c62 100644
--- a/src/engine/platform/gbaminmod.cpp
+++ b/src/engine/platform/gbaminmod.cpp
@@ -674,7 +674,7 @@ size_t DivPlatformGBAMinMod::getSampleMemUsage(int index) {
 
 bool DivPlatformGBAMinMod::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -690,6 +690,8 @@ const DivMemoryComposition* DivPlatformGBAMinMod::getMemCompo(int index) {
 void DivPlatformGBAMinMod::renderSamples(int sysID) {
   size_t maxPos=getSampleMemCapacity();
   memset(sampleMem,0,maxPos);
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
   romMemCompo.entries.clear();
   romMemCompo.capacity=maxPos;
 
@@ -788,3 +790,14 @@ void DivPlatformGBAMinMod::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformGBAMinMod::DivPlatformGBAMinMod() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformGBAMinMod::~DivPlatformGBAMinMod() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/gbaminmod.h b/src/engine/platform/gbaminmod.h
index 2e532bf2c..633796d9b 100644
--- a/src/engine/platform/gbaminmod.h
+++ b/src/engine/platform/gbaminmod.h
@@ -54,8 +54,8 @@ class DivPlatformGBAMinMod: public DivDispatch {
   Channel chan[16];
   DivDispatchOscBuffer* oscBuf[16];
   bool isMuted[16];
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
   int volScale;
   unsigned char chanMax;
 
@@ -121,6 +121,8 @@ class DivPlatformGBAMinMod: public DivDispatch {
     void setFlags(const DivConfig& flags);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformGBAMinMod();
+    ~DivPlatformGBAMinMod();
 
     float maxCPU;
   private:
diff --git a/src/engine/platform/k007232.cpp b/src/engine/platform/k007232.cpp
index dd7dcf1d7..0fa8aaace 100644
--- a/src/engine/platform/k007232.cpp
+++ b/src/engine/platform/k007232.cpp
@@ -555,7 +555,7 @@ size_t DivPlatformK007232::getSampleMemUsage(int index) {
 
 bool DivPlatformK007232::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -566,8 +566,8 @@ const DivMemoryComposition* DivPlatformK007232::getMemCompo(int index) {
 
 void DivPlatformK007232::renderSamples(int sysID) {
   memset(sampleMem,0xc0,getSampleMemCapacity());
-  memset(sampleOffK007232,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffK007232,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -636,3 +636,17 @@ void DivPlatformK007232::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformK007232::DivPlatformK007232():
+  DivDispatch(),
+  k007232_intf(),
+  k007232(*this) {
+  sampleOffK007232=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformK007232::~DivPlatformK007232() {
+  delete[] sampleOffK007232;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/k007232.h b/src/engine/platform/k007232.h
index f2497a9e0..6545fc034 100644
--- a/src/engine/platform/k007232.h
+++ b/src/engine/platform/k007232.h
@@ -63,8 +63,8 @@ class DivPlatformK007232: public DivDispatch, public k007232_intf {
       val(v) {}
   };
   FixedQueue<QueuedWrite,256> writes;
-  unsigned int sampleOffK007232[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffK007232;
+  bool* sampleLoaded;
 
   int delay;
   unsigned char lastLoop, lastVolume, oscDivider;
@@ -110,10 +110,8 @@ class DivPlatformK007232: public DivDispatch, public k007232_intf {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
-    DivPlatformK007232():
-      DivDispatch(),
-      k007232_intf(),
-      k007232(*this) {}
+    DivPlatformK007232();
+    ~DivPlatformK007232();
 };
 
 #endif
diff --git a/src/engine/platform/k053260.cpp b/src/engine/platform/k053260.cpp
index 85d7ab817..561cc08d8 100644
--- a/src/engine/platform/k053260.cpp
+++ b/src/engine/platform/k053260.cpp
@@ -160,7 +160,7 @@ void DivPlatformK053260::tick(bool sysTick) {
         unsigned int start=0;
         unsigned int length=0;
         if (sample>=0 && sample<parent->song.sampleLen) {
-          start=sampleOffK053260[sample];
+          start=sampleOff[sample];
           length=(s->depth==DIV_SAMPLE_DEPTH_ADPCM_K)?s->lengthK:s->length8;
           if (chan[i].reverse) {
             start+=length;
@@ -470,7 +470,7 @@ size_t DivPlatformK053260::getSampleMemUsage(int index) {
 
 bool DivPlatformK053260::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -481,8 +481,8 @@ const DivMemoryComposition* DivPlatformK053260::getMemCompo(int index) {
 
 void DivPlatformK053260::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity());
-  memset(sampleOffK053260,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -491,7 +491,7 @@ void DivPlatformK053260::renderSamples(int sysID) {
   for (int i=0; i<parent->song.sampleLen; i++) {
     DivSample* s=parent->song.sample[i];
     if (!s->renderOn[0][sysID]) {
-      sampleOffK053260[i]=0;
+      sampleOff[i]=0;
       continue;
     }
 
@@ -501,7 +501,7 @@ void DivPlatformK053260::renderSamples(int sysID) {
       length=MIN(65535,s->getEndPosition(DIV_SAMPLE_DEPTH_ADPCM_K));
       actualLength=MIN((int)(getSampleMemCapacity()-memPos-1),length);
       if (actualLength>0) {
-        sampleOffK053260[i]=memPos-1;
+        sampleOff[i]=memPos-1;
         memCompo.entries.push_back(DivMemoryEntry(DIV_MEMORY_SAMPLE,"Sample",i,memPos,memPos+actualLength+1));
         for (int j=0; j<actualLength; j++) {
           sampleMem[memPos++]=s->dataK[j];
@@ -512,7 +512,7 @@ void DivPlatformK053260::renderSamples(int sysID) {
       length=MIN(65535,s->getEndPosition(DIV_SAMPLE_DEPTH_8BIT));
       actualLength=MIN((int)(getSampleMemCapacity()-memPos-1),length);
       if (actualLength>0) {
-        sampleOffK053260[i]=memPos-1;
+        sampleOff[i]=memPos-1;
         memCompo.entries.push_back(DivMemoryEntry(DIV_MEMORY_SAMPLE,"Sample",i,memPos,memPos+actualLength+1));
         for (int j=0; j<actualLength; j++) {
           sampleMem[memPos++]=s->data8[j];
@@ -555,3 +555,17 @@ void DivPlatformK053260::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformK053260::DivPlatformK053260():
+  DivDispatch(),
+  k053260_intf(),
+  k053260(*this) {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformK053260::~DivPlatformK053260() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/k053260.h b/src/engine/platform/k053260.h
index ce175d4d2..a9ae679e9 100644
--- a/src/engine/platform/k053260.h
+++ b/src/engine/platform/k053260.h
@@ -46,8 +46,8 @@ class DivPlatformK053260: public DivDispatch, public k053260_intf {
   bool isMuted[4];
   int chipType;
   unsigned char curChan;
-  unsigned int sampleOffK053260[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
 
   unsigned char* sampleMem;
   size_t sampleMemLen;
@@ -89,10 +89,8 @@ class DivPlatformK053260: public DivDispatch, public k053260_intf {
     virtual void renderSamples(int chipID) override;
     virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
-    DivPlatformK053260():
-      DivDispatch(),
-      k053260_intf(),
-      k053260(*this) {}
+    DivPlatformK053260();
+    ~DivPlatformK053260();
   private:
     void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
 };
diff --git a/src/engine/platform/msm6295.cpp b/src/engine/platform/msm6295.cpp
index d70a05b84..29d8f9334 100644
--- a/src/engine/platform/msm6295.cpp
+++ b/src/engine/platform/msm6295.cpp
@@ -385,7 +385,7 @@ size_t DivPlatformMSM6295::getSampleMemUsage(int index) {
 
 bool DivPlatformMSM6295::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -395,12 +395,12 @@ const DivMemoryComposition* DivPlatformMSM6295::getMemCompo(int index) {
 }
 
 void DivPlatformMSM6295::renderSamples(int sysID) {
-  unsigned int sampleOffVOX[256];
+  unsigned int* sampleOffVOX=new unsigned int[32768];
 
   memset(adpcmMem,0,16777216);
-  memset(sampleOffVOX,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
-  for (int i=0; i<256; i++) {
+  memset(sampleOffVOX,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
+  for (int i=0; i<32768; i++) {
     bankedPhrase[i].bank=0;
     bankedPhrase[i].phrase=0;
   }
@@ -510,6 +510,8 @@ void DivPlatformMSM6295::renderSamples(int sysID) {
 
   memCompo.capacity=getSampleMemCapacity(0);
   memCompo.used=adpcmMemLen;
+
+  delete[] sampleOffVOX;
 }
 
 void DivPlatformMSM6295::setFlags(const DivConfig& flags) {
@@ -600,5 +602,16 @@ void DivPlatformMSM6295::quit() {
   delete[] adpcmMem;
 }
 
-DivPlatformMSM6295::~DivPlatformMSM6295() {
+// initialization of important arrays
+DivPlatformMSM6295::DivPlatformMSM6295():
+  DivDispatch(),
+  vgsound_emu_mem_intf(),
+  msm(*this) {
+  bankedPhrase=new BankedPhrase[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformMSM6295::~DivPlatformMSM6295() {
+  delete[] bankedPhrase;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/msm6295.h b/src/engine/platform/msm6295.h
index 480e7cc50..5975e1216 100644
--- a/src/engine/platform/msm6295.h
+++ b/src/engine/platform/msm6295.h
@@ -52,7 +52,7 @@ class DivPlatformMSM6295: public DivDispatch, public vgsound_emu_mem_intf {
 
     unsigned char* adpcmMem;
     size_t adpcmMemLen;
-    bool sampleLoaded[256];
+    bool* sampleLoaded;
     unsigned char sampleBank;
 
     int delay, updateOsc;
@@ -68,7 +68,7 @@ class DivPlatformMSM6295: public DivDispatch, public vgsound_emu_mem_intf {
         bank(0),
         phrase(0),
         length(0) {}
-    } bankedPhrase[256];
+    }* bankedPhrase;
 
     DivMemoryComposition memCompo;
   
@@ -106,10 +106,7 @@ class DivPlatformMSM6295: public DivDispatch, public vgsound_emu_mem_intf {
 
     virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
-    DivPlatformMSM6295():
-      DivDispatch(),
-      vgsound_emu_mem_intf(),
-      msm(*this) {}
+    DivPlatformMSM6295();
     ~DivPlatformMSM6295();
 };
 #endif
diff --git a/src/engine/platform/nds.cpp b/src/engine/platform/nds.cpp
index 1a09d1ca9..72be6f0bb 100644
--- a/src/engine/platform/nds.cpp
+++ b/src/engine/platform/nds.cpp
@@ -531,7 +531,7 @@ size_t DivPlatformNDS::getSampleMemUsage(int index) {
 
 bool DivPlatformNDS::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -542,8 +542,8 @@ const DivMemoryComposition* DivPlatformNDS::getMemCompo(int index) {
 
 void DivPlatformNDS::renderSamples(int sysID) {
   memset(sampleMem,0,16777216);
-  memset(sampleOff,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Main Memory";
@@ -629,3 +629,17 @@ void DivPlatformNDS::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformNDS::DivPlatformNDS():
+  DivDispatch(),
+  nds_sound_intf(),
+  nds(*this) {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformNDS::~DivPlatformNDS() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/nds.h b/src/engine/platform/nds.h
index c37d19c4b..2186529bb 100644
--- a/src/engine/platform/nds.h
+++ b/src/engine/platform/nds.h
@@ -50,8 +50,8 @@ class DivPlatformNDS: public DivDispatch, public nds_sound_intf {
   bool isDSi;
   int globalVolume;
   int lastOut[2];
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
   struct QueuedWrite {
     unsigned short addr;
     unsigned char size;
@@ -104,10 +104,8 @@ class DivPlatformNDS: public DivDispatch, public nds_sound_intf {
     virtual void setFlags(const DivConfig& flags) override;
     virtual int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags) override;
     virtual void quit() override;
-    DivPlatformNDS():
-      DivDispatch(),
-      nds_sound_intf(),
-      nds(*this) {}
+    DivPlatformNDS();
+    ~DivPlatformNDS();
   private:
     void writeOutVol(int ch);
 };
diff --git a/src/engine/platform/nes.cpp b/src/engine/platform/nes.cpp
index 5513f2996..7ef5db9f6 100644
--- a/src/engine/platform/nes.cpp
+++ b/src/engine/platform/nes.cpp
@@ -1039,7 +1039,7 @@ size_t DivPlatformNES::getSampleMemUsage(int index) {
 
 bool DivPlatformNES::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -1050,7 +1050,8 @@ const DivMemoryComposition* DivPlatformNES::getMemCompo(int index) {
 
 void DivPlatformNES::renderSamples(int sysID) {
   memset(dpcmMem,0,getSampleMemCapacity(0));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffDPCM,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="DPCM";
@@ -1156,5 +1157,13 @@ void DivPlatformNES::quit() {
   }
 }
 
-DivPlatformNES::~DivPlatformNES() {
+// initialization of important arrays
+DivPlatformNES::DivPlatformNES() {
+  sampleOffDPCM=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformNES::~DivPlatformNES() {
+  delete[] sampleOffDPCM;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/nes.h b/src/engine/platform/nes.h
index 5ab205ef0..51413d1a4 100644
--- a/src/engine/platform/nes.h
+++ b/src/engine/platform/nes.h
@@ -57,7 +57,7 @@ class DivPlatformNES: public DivDispatch {
   int dacSample;
   unsigned char* dpcmMem;
   size_t dpcmMemLen;
-  bool sampleLoaded[256];
+  bool* sampleLoaded;
   unsigned char dpcmBank;
   unsigned char sampleBank;
   unsigned char writeOscBuf;
@@ -80,7 +80,7 @@ class DivPlatformNES: public DivDispatch {
   xgm::I5E01_APU* e1_NP;
   xgm::I5E01_DMC* e2_NP;
   unsigned char regPool[128];
-  unsigned int sampleOffDPCM[256];
+  unsigned int* sampleOffDPCM;
   DivMemoryComposition memCompo;
 
   friend void putDispatchChip(void*,int);
@@ -124,6 +124,7 @@ class DivPlatformNES: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformNES();
     ~DivPlatformNES();
 };
 
diff --git a/src/engine/platform/opl.cpp b/src/engine/platform/opl.cpp
index 544602b24..762bde308 100644
--- a/src/engine/platform/opl.cpp
+++ b/src/engine/platform/opl.cpp
@@ -3243,7 +3243,7 @@ size_t DivPlatformOPL::getSampleMemUsage(int index) {
 
 bool DivPlatformOPL::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -3261,9 +3261,9 @@ void DivPlatformOPL::renderSamples(int sysID) {
   if (pcmChanOffs>=0 && pcmMem!=NULL) {
     memset(pcmMem,0,4194304);
   }
-  memset(sampleOffPCM,0,256*sizeof(unsigned int));
-  memset(sampleOffB,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffPCM,0,32768*sizeof(unsigned int));
+  memset(sampleOffB,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample Memory";
@@ -3503,5 +3503,17 @@ void DivPlatformOPL::quit() {
   }
 }
 
-DivPlatformOPL::~DivPlatformOPL() {
+// initialization of important arrays
+DivPlatformOPL::DivPlatformOPL():
+  pcmMemory(0x400000),
+  pcm(pcmMemory) {
+  sampleOffPCM=new unsigned int[32768];
+  sampleOffB=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformOPL::~DivPlatformOPL() {
+  delete[] sampleOffPCM;
+  delete[] sampleOffB;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/opl.h b/src/engine/platform/opl.h
index c20bc4bed..43cf9bd3c 100644
--- a/src/engine/platform/opl.h
+++ b/src/engine/platform/opl.h
@@ -123,9 +123,9 @@ class DivPlatformOPL: public DivDispatch {
     size_t pcmMemLen;
     DivOPLAInterface iface;
     DivYMF278MemoryInterface pcmMemory;
-    unsigned int sampleOffB[256];
-    unsigned int sampleOffPCM[256];
-    bool sampleLoaded[256];
+    unsigned int* sampleOffB;
+    unsigned int* sampleOffPCM;
+    bool* sampleLoaded;
   
     ymfm::adpcm_b_engine* adpcmB;
     const unsigned char** slotsNonDrums;
@@ -223,9 +223,7 @@ class DivPlatformOPL: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
-    DivPlatformOPL():
-      pcmMemory(0x400000),
-      pcm(pcmMemory) {}
+    DivPlatformOPL();
     ~DivPlatformOPL();
 };
 #endif
diff --git a/src/engine/platform/qsound.cpp b/src/engine/platform/qsound.cpp
index 47e67c823..3cbe74762 100644
--- a/src/engine/platform/qsound.cpp
+++ b/src/engine/platform/qsound.cpp
@@ -747,7 +747,7 @@ size_t DivPlatformQSound::getSampleMemUsage(int index) {
 
 bool DivPlatformQSound::isSampleLoaded(int index, int sample) {
   if (index<0 || index>1) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   if (index==1) return sampleLoadedBS[sample];
   return sampleLoaded[sample];
 }
@@ -763,8 +763,10 @@ const DivMemoryComposition* DivPlatformQSound::getMemCompo(int index) {
 
 void DivPlatformQSound::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity());
-  memset(sampleLoaded,0,256*sizeof(bool));
-  memset(sampleLoadedBS,0,256*sizeof(bool));
+  memset(offPCM,0,32768*sizeof(unsigned int));
+  memset(offBS,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
+  memset(sampleLoadedBS,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -880,3 +882,18 @@ void DivPlatformQSound::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformQSound::DivPlatformQSound() {
+  offPCM=new unsigned int[32768];
+  offBS=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+  sampleLoadedBS=new bool[32768];
+}
+
+DivPlatformQSound::~DivPlatformQSound() {
+  delete[] offPCM;
+  delete[] offBS;
+  delete[] sampleLoaded;
+  delete[] sampleLoadedBS;
+}
diff --git a/src/engine/platform/qsound.h b/src/engine/platform/qsound.h
index 9015a9bcc..d78d50560 100644
--- a/src/engine/platform/qsound.h
+++ b/src/engine/platform/qsound.h
@@ -53,13 +53,13 @@ class DivPlatformQSound: public DivDispatch {
   size_t sampleMemLen;
   size_t sampleMemLenBS;
   size_t sampleMemUsage;
-  bool sampleLoaded[256];
-  bool sampleLoadedBS[256];
+  bool* sampleLoaded;
+  bool* sampleLoadedBS;
   struct qsound_chip chip;
   unsigned short regPool[512];
 
-  unsigned int offPCM[256];
-  unsigned int offBS[256];
+  unsigned int* offPCM;
+  unsigned int* offBS;
 
   DivMemoryComposition memCompo;
 
@@ -98,6 +98,8 @@ class DivPlatformQSound: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformQSound();
+    ~DivPlatformQSound();
 };
 
 #endif
diff --git a/src/engine/platform/rf5c68.cpp b/src/engine/platform/rf5c68.cpp
index 5582a6230..831d47e1c 100644
--- a/src/engine/platform/rf5c68.cpp
+++ b/src/engine/platform/rf5c68.cpp
@@ -420,7 +420,7 @@ size_t DivPlatformRF5C68::getSampleMemUsage(int index) {
 
 bool DivPlatformRF5C68::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -431,8 +431,8 @@ const DivMemoryComposition* DivPlatformRF5C68::getMemCompo(int index) {
 
 void DivPlatformRF5C68::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity());
-  memset(sampleOffRFC,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffRFC,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample Memory";
@@ -497,3 +497,14 @@ void DivPlatformRF5C68::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformRF5C68::DivPlatformRF5C68() {
+  sampleOffRFC=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformRF5C68::~DivPlatformRF5C68() {
+  delete[] sampleOffRFC;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/rf5c68.h b/src/engine/platform/rf5c68.h
index ea01ae65a..c2081d1fa 100644
--- a/src/engine/platform/rf5c68.h
+++ b/src/engine/platform/rf5c68.h
@@ -44,8 +44,8 @@ class DivPlatformRF5C68: public DivDispatch {
   bool isMuted[8];
   int chipType;
   unsigned char curChan;
-  unsigned int sampleOffRFC[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffRFC;
+  bool* sampleLoaded;
 
   unsigned char* sampleMem;
   size_t sampleMemLen;
@@ -85,6 +85,8 @@ class DivPlatformRF5C68: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformRF5C68();
+    ~DivPlatformRF5C68();
   private:
     void chWrite(unsigned char ch, unsigned int addr, unsigned char val);
 };
diff --git a/src/engine/platform/segapcm.cpp b/src/engine/platform/segapcm.cpp
index f93731d34..8245009b6 100644
--- a/src/engine/platform/segapcm.cpp
+++ b/src/engine/platform/segapcm.cpp
@@ -470,7 +470,7 @@ size_t DivPlatformSegaPCM::getSampleMemUsage(int index) {
 
 bool DivPlatformSegaPCM::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -509,9 +509,9 @@ void DivPlatformSegaPCM::renderSamples(int sysID) {
   size_t memPos=0;
 
   memset(sampleMem,0,2097152);
-  memset(sampleLoaded,0,256*sizeof(bool));
-  memset(sampleOffSegaPCM,0,256*sizeof(unsigned int));
-  memset(sampleEndSegaPCM,0,256);
+  memset(sampleLoaded,0,32768*sizeof(bool));
+  memset(sampleOffSegaPCM,0,32768*sizeof(unsigned int));
+  memset(sampleEndSegaPCM,0,32768);
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -595,5 +595,15 @@ void DivPlatformSegaPCM::quit() {
   delete sampleMem;
 }
 
-DivPlatformSegaPCM::~DivPlatformSegaPCM() {
+// initialization of important arrays
+DivPlatformSegaPCM::DivPlatformSegaPCM() {
+  sampleOffSegaPCM=new unsigned int[32768];
+  sampleEndSegaPCM=new unsigned char[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformSegaPCM::~DivPlatformSegaPCM() {
+  delete[] sampleOffSegaPCM;
+  delete[] sampleEndSegaPCM;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/segapcm.h b/src/engine/platform/segapcm.h
index 005c2117f..068644a96 100644
--- a/src/engine/platform/segapcm.h
+++ b/src/engine/platform/segapcm.h
@@ -78,9 +78,9 @@ class DivPlatformSegaPCM: public DivDispatch {
     short oldWrites[256];
     short pendingWrites[256];
 
-    unsigned int sampleOffSegaPCM[256];
-    unsigned char sampleEndSegaPCM[256];
-    bool sampleLoaded[256];
+    unsigned int* sampleOffSegaPCM;
+    unsigned char* sampleEndSegaPCM;
+    bool* sampleLoaded;
 
     DivMemoryComposition memCompo;
   
@@ -116,6 +116,7 @@ class DivPlatformSegaPCM: public DivDispatch {
     const DivMemoryComposition* getMemCompo(int index);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformSegaPCM();
     ~DivPlatformSegaPCM();
 };
 #endif
diff --git a/src/engine/platform/snes.cpp b/src/engine/platform/snes.cpp
index 1c4136f4d..3686d0c30 100644
--- a/src/engine/platform/snes.cpp
+++ b/src/engine/platform/snes.cpp
@@ -966,7 +966,7 @@ size_t DivPlatformSNES::getSampleMemUsage(int index) {
 
 bool DivPlatformSNES::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -977,8 +977,8 @@ const DivMemoryComposition* DivPlatformSNES::getMemCompo(int index) {
 
 void DivPlatformSNES::renderSamples(int sysID) {
   memset(copyOfSampleMem,0,65536);
-  memset(sampleOff,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="SPC/DSP Memory";
@@ -1077,3 +1077,14 @@ void DivPlatformSNES::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformSNES::DivPlatformSNES() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformSNES::~DivPlatformSNES() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/snes.h b/src/engine/platform/snes.h
index 1dbaccf61..62ec1bd35 100644
--- a/src/engine/platform/snes.h
+++ b/src/engine/platform/snes.h
@@ -93,8 +93,8 @@ class DivPlatformSNES: public DivDispatch {
   signed char sampleMem[65536];
   signed char copyOfSampleMem[65536];
   size_t sampleMemLen;
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
   DivMemoryComposition memCompo;
   unsigned char regPool[0x80];
   SPC_DSP dsp;
@@ -132,6 +132,8 @@ class DivPlatformSNES: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformSNES();
+    ~DivPlatformSNES();
   private:
     void updateWave(int ch);
     void writeOutVol(int ch);
diff --git a/src/engine/platform/su.cpp b/src/engine/platform/su.cpp
index 79776ce7b..5690fe36f 100644
--- a/src/engine/platform/su.cpp
+++ b/src/engine/platform/su.cpp
@@ -690,7 +690,7 @@ size_t DivPlatformSoundUnit::getSampleMemUsage(int index) {
 
 bool DivPlatformSoundUnit::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -701,8 +701,8 @@ const DivMemoryComposition* DivPlatformSoundUnit::getMemCompo(int index) {
 
 void DivPlatformSoundUnit::renderSamples(int sysID) {
   memset(sampleMem,0,sampleMemSize?65536:8192);
-  memset(sampleOffSU,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffSU,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample RAM";
@@ -770,5 +770,13 @@ void DivPlatformSoundUnit::quit() {
   delete[] sampleMem;
 }
 
-DivPlatformSoundUnit::~DivPlatformSoundUnit() {
+// initialization of important arrays
+DivPlatformSoundUnit::DivPlatformSoundUnit() {
+  sampleOffSU=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformSoundUnit::~DivPlatformSoundUnit() {
+  delete[] sampleOffSU;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/su.h b/src/engine/platform/su.h
index 82f6d4922..4e8bcc691 100644
--- a/src/engine/platform/su.h
+++ b/src/engine/platform/su.h
@@ -94,8 +94,8 @@ class DivPlatformSoundUnit: public DivDispatch {
   unsigned char ilCtrl, ilSize, fil1;
   unsigned char initIlCtrl, initIlSize, initFil1;
   signed char echoVol, initEchoVol;
-  unsigned int sampleOffSU[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffSU;
+  bool* sampleLoaded;
 
   int cycles, curChan, delay, sysIDCache;
   short tempL;
@@ -140,6 +140,7 @@ class DivPlatformSoundUnit: public DivDispatch {
     void renderSamples(int chipID);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformSoundUnit();
     ~DivPlatformSoundUnit();
 };
 
diff --git a/src/engine/platform/supervision.cpp b/src/engine/platform/supervision.cpp
index 0f68e55cd..450d4357a 100644
--- a/src/engine/platform/supervision.cpp
+++ b/src/engine/platform/supervision.cpp
@@ -513,7 +513,7 @@ size_t DivPlatformSupervision::getSampleMemUsage(int index) {
 
 bool DivPlatformSupervision::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -524,7 +524,7 @@ const DivMemoryComposition* DivPlatformSupervision::getMemCompo(int index) {
 
 void DivPlatformSupervision::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity(0));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample Memory";
@@ -603,5 +603,13 @@ void DivPlatformSupervision::quit() {
   }
 }
 
-DivPlatformSupervision::~DivPlatformSupervision() {
+// initialization of important arrays
+DivPlatformSupervision::DivPlatformSupervision() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformSupervision::~DivPlatformSupervision() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/supervision.h b/src/engine/platform/supervision.h
index f0cd0b1da..2b3e7bb1f 100644
--- a/src/engine/platform/supervision.h
+++ b/src/engine/platform/supervision.h
@@ -56,9 +56,9 @@ class DivPlatformSupervision: public DivDispatch {
   int tempR[32];
   int coreQuality;
   unsigned char regPool[64];
-  unsigned int sampleOff[256];
-  unsigned int sampleLen[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  unsigned int* sampleLen;
+  bool* sampleLoaded;
   DivMemoryComposition memCompo;
   unsigned char* sampleMem;
   size_t sampleMemLen;
@@ -98,6 +98,7 @@ class DivPlatformSupervision: public DivDispatch {
     bool getDCOffRequired();
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformSupervision();
     ~DivPlatformSupervision();
 };
 
diff --git a/src/engine/platform/x1_010.cpp b/src/engine/platform/x1_010.cpp
index 7a05eacf4..9599b06b4 100644
--- a/src/engine/platform/x1_010.cpp
+++ b/src/engine/platform/x1_010.cpp
@@ -1001,7 +1001,7 @@ size_t DivPlatformX1_010::getSampleMemUsage(int index) {
 
 bool DivPlatformX1_010::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -1012,8 +1012,8 @@ const DivMemoryComposition* DivPlatformX1_010::getMemCompo(int index) {
 
 void DivPlatformX1_010::renderSamples(int sysID) {
   memset(sampleMem,0,16777216);
-  memset(sampleOffX1,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffX1,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -1081,5 +1081,16 @@ void DivPlatformX1_010::quit() {
   delete[] sampleMem;
 }
 
-DivPlatformX1_010::~DivPlatformX1_010() {
+// initialization of important arrays
+DivPlatformX1_010::DivPlatformX1_010():
+  DivDispatch(),
+  vgsound_emu_mem_intf(),
+  x1_010(*this) {
+  sampleOffX1=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformX1_010::~DivPlatformX1_010() {
+  delete[] sampleOffX1;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/x1_010.h b/src/engine/platform/x1_010.h
index 495d029bc..7800dbc47 100644
--- a/src/engine/platform/x1_010.h
+++ b/src/engine/platform/x1_010.h
@@ -117,8 +117,8 @@ class DivPlatformX1_010: public DivDispatch, public vgsound_emu_mem_intf {
 
   bool isBanked=false;
   unsigned int bankSlot[8];
-  unsigned int sampleOffX1[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOffX1;
+  bool* sampleLoaded;
 
   DivMemoryComposition memCompo;
 
@@ -159,10 +159,7 @@ class DivPlatformX1_010: public DivDispatch, public vgsound_emu_mem_intf {
     const char** getRegisterSheet();
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
-    DivPlatformX1_010():
-      DivDispatch(),
-      vgsound_emu_mem_intf(),
-      x1_010(*this) {}
+    DivPlatformX1_010();
     ~DivPlatformX1_010();
 };
 
diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index 383ee3749..f412b56b8 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -1991,7 +1991,7 @@ size_t DivPlatformYM2608::getSampleMemUsage(int index) {
 
 bool DivPlatformYM2608::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -2002,8 +2002,8 @@ const DivMemoryComposition* DivPlatformYM2608::getMemCompo(int index) {
 
 void DivPlatformYM2608::renderSamples(int sysID) {
   memset(adpcmBMem,0,getSampleMemCapacity(0));
-  memset(sampleOffB,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOffB,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="ADPCM";
@@ -2148,5 +2148,16 @@ void DivPlatformYM2608::quit() {
   delete[] adpcmBMem;
 }
 
-DivPlatformYM2608::~DivPlatformYM2608() {
+// initialization of important arrays
+DivPlatformYM2608::DivPlatformYM2608():
+  DivPlatformOPN(2, 6, 9, 15, 16, 9440540.0, 72, 32, false, 16),
+  prescale(0x2d),
+  isCSM(0) {
+  sampleOffB=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformYM2608::~DivPlatformYM2608() {
+  delete[] sampleOffB;
+  delete[] sampleLoaded;
 }
diff --git a/src/engine/platform/ym2608.h b/src/engine/platform/ym2608.h
index 66a7f90eb..3bc09fa5d 100644
--- a/src/engine/platform/ym2608.h
+++ b/src/engine/platform/ym2608.h
@@ -67,8 +67,8 @@ class DivPlatformYM2608: public DivPlatformOPN {
     unsigned char* adpcmBMem;
     size_t adpcmBMemLen;
     DivYM2608Interface iface;
-    unsigned int sampleOffB[256];
-    bool sampleLoaded[256];
+    unsigned int* sampleOffB;
+    bool* sampleLoaded;
   
     DivPlatformAY8910* ay;
     unsigned char sampleBank;
@@ -124,10 +124,7 @@ class DivPlatformYM2608: public DivPlatformOPN {
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void setCSM(bool isCSM);
     void quit();
-    DivPlatformYM2608():
-      DivPlatformOPN(2, 6, 9, 15, 16, 9440540.0, 72, 32, false, 16),
-      prescale(0x2d),
-      isCSM(0) {}
+    DivPlatformYM2608();
     ~DivPlatformYM2608();
 };
 #endif
diff --git a/src/engine/platform/ym2610shared.h b/src/engine/platform/ym2610shared.h
index 9854d6248..9db752d6a 100644
--- a/src/engine/platform/ym2610shared.h
+++ b/src/engine/platform/ym2610shared.h
@@ -75,14 +75,14 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
     size_t adpcmBMemLen;
     DivYM2610Interface iface;
 
-    unsigned int sampleOffA[256];
-    unsigned int sampleOffB[256];
+    unsigned int* sampleOffA;
+    unsigned int* sampleOffB;
 
     unsigned char sampleBank;
   
     bool extMode, noExtMacros;
 
-    bool sampleLoaded[2][256];
+    bool* sampleLoaded[2];
   
     unsigned char writeADPCMAOff, writeADPCMAOn;
     int globalADPCMAVolume;
@@ -214,7 +214,7 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
 
     bool isSampleLoaded(int index, int sample) {
       if (index<0 || index>1) return false;
-      if (sample<0 || sample>255) return false;
+      if (sample<0 || sample>32767) return false;
       return sampleLoaded[index][sample];
     }
     
@@ -226,9 +226,10 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
 
     void renderSamples(int sysID) {
       memset(adpcmAMem,0,getSampleMemCapacity(0));
-      memset(sampleOffA,0,256*sizeof(unsigned int));
-      memset(sampleOffB,0,256*sizeof(unsigned int));
-      memset(sampleLoaded,0,256*2*sizeof(bool));
+      memset(sampleOffA,0,32768*sizeof(unsigned int));
+      memset(sampleOffB,0,32768*sizeof(unsigned int));
+      memset(sampleLoaded[0],0,32768*sizeof(bool));
+      memset(sampleLoaded[1],0,32768*sizeof(bool));
 
       memCompoA=DivMemoryComposition();
       memCompoA.name="ADPCM-A";
@@ -365,7 +366,18 @@ class DivPlatformYM2610Base: public DivPlatformOPN {
     }
 
     DivPlatformYM2610Base(int ext, int psg, int adpcmA, int adpcmB, int chanCount):
-      DivPlatformOPN(ext,psg,adpcmA,adpcmB,chanCount,9440540.0, 72, 32, false, 16) {}
+      DivPlatformOPN(ext,psg,adpcmA,adpcmB,chanCount,9440540.0, 72, 32, false, 16) {
+      sampleOffA=new unsigned int[32768];
+      sampleOffB=new unsigned int[32768];
+      sampleLoaded[0]=new bool[32768];
+      sampleLoaded[1]=new bool[32768];
+    }
+    ~DivPlatformYM2610Base() {
+      delete[] sampleOffA;
+      delete[] sampleOffB;
+      delete[] sampleLoaded[0];
+      delete[] sampleLoaded[1];
+    }
 };
 
 #endif
diff --git a/src/engine/platform/ymz280b.cpp b/src/engine/platform/ymz280b.cpp
index 146ac38bb..6500969e9 100644
--- a/src/engine/platform/ymz280b.cpp
+++ b/src/engine/platform/ymz280b.cpp
@@ -449,7 +449,7 @@ size_t DivPlatformYMZ280B::getSampleMemUsage(int index) {
 
 bool DivPlatformYMZ280B::isSampleLoaded(int index, int sample) {
   if (index!=0) return false;
-  if (sample<0 || sample>255) return false;
+  if (sample<0 || sample>32767) return false;
   return sampleLoaded[sample];
 }
 
@@ -460,8 +460,8 @@ const DivMemoryComposition* DivPlatformYMZ280B::getMemCompo(int index) {
 
 void DivPlatformYMZ280B::renderSamples(int sysID) {
   memset(sampleMem,0,getSampleMemCapacity());
-  memset(sampleOff,0,256*sizeof(unsigned int));
-  memset(sampleLoaded,0,256*sizeof(bool));
+  memset(sampleOff,0,32768*sizeof(unsigned int));
+  memset(sampleLoaded,0,32768*sizeof(bool));
 
   memCompo=DivMemoryComposition();
   memCompo.name="Sample ROM";
@@ -570,3 +570,14 @@ void DivPlatformYMZ280B::quit() {
     delete oscBuf[i];
   }
 }
+
+// initialization of important arrays
+DivPlatformYMZ280B::DivPlatformYMZ280B() {
+  sampleOff=new unsigned int[32768];
+  sampleLoaded=new bool[32768];
+}
+
+DivPlatformYMZ280B::~DivPlatformYMZ280B() {
+  delete[] sampleOff;
+  delete[] sampleLoaded;
+}
diff --git a/src/engine/platform/ymz280b.h b/src/engine/platform/ymz280b.h
index d17f472db..cd7191b86 100644
--- a/src/engine/platform/ymz280b.h
+++ b/src/engine/platform/ymz280b.h
@@ -44,8 +44,8 @@ class DivPlatformYMZ280B: public DivDispatch {
   DivDispatchOscBuffer* oscBuf[8];
   bool isMuted[8];
   int chipType;
-  unsigned int sampleOff[256];
-  bool sampleLoaded[256];
+  unsigned int* sampleOff;
+  bool* sampleLoaded;
 
   unsigned char* sampleMem;
   size_t sampleMemLen;
@@ -86,6 +86,8 @@ class DivPlatformYMZ280B: public DivDispatch {
     void setFlags(const DivConfig& flags);
     int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
     void quit();
+    DivPlatformYMZ280B();
+    ~DivPlatformYMZ280B();
   private:
     void writeOutVol(int ch);
 };