diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index fa68cd60..cc1428e1 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -491,6 +491,77 @@ void DivEngine::notifyWaveChange(int wave) {
   BUSY_END;
 }
 
+int DivEngine::loadSampleRom(String path, ssize_t expectedSize, unsigned char*& ret) {
+  ret = NULL;
+  if (path.empty()) {
+    return 0;
+  }
+  logI("loading ROM %s...",path);
+  FILE* f=ps_fopen(path.c_str(),"rb");
+  if (f==NULL) {
+    logE("error: %s",strerror(errno));
+    lastError=strerror(errno);
+    return -1;
+  }
+  if (fseek(f,0,SEEK_END)<0) {
+    logE("size error: %s",strerror(errno));
+    lastError=fmt::sprintf("on seek: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  ssize_t len=ftell(f);
+  if (len==(SIZE_MAX>>1)) {
+    logE("could not get file length: %s",strerror(errno));
+    lastError=fmt::sprintf("on pre tell: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  if (len<1) {
+    if (len==0) {
+      logE("that file is empty!");
+      lastError="file is empty";
+    } else {
+      logE("tell error: %s",strerror(errno));
+      lastError=fmt::sprintf("on tell: %s",strerror(errno));
+    }
+    fclose(f);
+    return -1;
+  }
+  if (len!=expectedSize) {
+    logE("ROM size mismatch, expected: %d bytes, was: %d bytes", expectedSize, len);
+    lastError=fmt::sprintf("ROM size mismatch, expected: %d bytes, was: %d", expectedSize, len);
+    return -1;
+  }
+  if (fseek(f,0,SEEK_SET)<0) {
+    logE("size error: %s",strerror(errno));
+    lastError=fmt::sprintf("on get size: %s",strerror(errno));
+    fclose(f);
+    return -1;
+  }
+  unsigned char* file=new unsigned char[len];
+  if (fread(file,1,(size_t)len,f)!=(size_t)len) {
+    logE("read error: %s",strerror(errno));
+    lastError=fmt::sprintf("on read: %s",strerror(errno));
+    fclose(f);
+    delete[] file;
+    return -1;
+  }
+  fclose(f);
+  ret = file;
+  return 0;
+}
+
+int DivEngine::loadSampleRoms() {
+  delete[] yrw801Rom;
+  delete[] tg100Rom;
+  delete[] mu5Rom;
+  int error = 0;
+  error += loadSampleRom(getConfString("yrw801Path",""), 0x200000, yrw801Rom);
+  error += loadSampleRom(getConfString("tg100Path",""), 0x200000, tg100Rom);
+  error += loadSampleRom(getConfString("mu5Path",""), 0x200000, mu5Rom);
+  return error;
+}
+
 void DivEngine::renderSamplesP() {
   BUSY_BEGIN;
   renderSamples();
@@ -2708,6 +2779,8 @@ bool DivEngine::init() {
 
   loadConf();
 
+  loadSampleRoms();
+
   // set default system preset
   if (!hasLoadedSomething) {
     logD("setting default preset");
@@ -2781,5 +2854,8 @@ bool DivEngine::quit() {
   active=false;
   delete[] oscBuf[0];
   delete[] oscBuf[1];
+  delete[] yrw801Rom;
+  delete[] tg100Rom;
+  delete[] mu5Rom;
   return true;
 }
diff --git a/src/engine/engine.h b/src/engine/engine.h
index b72832b3..3338b4a5 100644
--- a/src/engine/engine.h
+++ b/src/engine/engine.h
@@ -397,6 +397,8 @@ class DivEngine {
   void loadOPM(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
   void loadFF(SafeReader& reader, std::vector<DivInstrument*>& ret, String& stripPath);
 
+  int loadSampleRom(String path, ssize_t expectedSize, unsigned char*& ret);
+
   bool initAudioBackend();
   bool deinitAudioBackend();
 
@@ -783,6 +785,9 @@ class DivEngine {
     // get register cheatsheet
     const char** getRegisterSheet(int sys);
 
+    // load sample ROMs
+    int loadSampleRoms();
+
     // UNSAFE render samples - only execute when locked
     void renderSamples();
 
@@ -856,6 +861,10 @@ class DivEngine {
     // terminate the engine.
     bool quit();
 
+    unsigned char* yrw801Rom;
+    unsigned char* tg100Rom;
+    unsigned char* mu5Rom;
+
     DivEngine():
       output(NULL),
       exportThread(NULL),
@@ -930,7 +939,10 @@ class DivEngine {
       oscReadPos(0),
       oscWritePos(0),
       tickMult(1),
-      processTime(0) {
+      processTime(0),
+      yrw801Rom(NULL),
+      tg100Rom(NULL),
+      mu5Rom(NULL) {
       memset(isMuted,0,DIV_MAX_CHANS*sizeof(bool));
       memset(keyHit,0,DIV_MAX_CHANS*sizeof(bool));
       memset(dispatchChanOfChan,0,DIV_MAX_CHANS*sizeof(int));
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index c8e90237..4d237c1d 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -1507,6 +1507,19 @@ void FurnaceGUI::openFileDialog(FurnaceGUIFileDialogs type) {
         dpiScale
       );
       break;
+    case GUI_FILE_YRW801_ROM_OPEN:
+    case GUI_FILE_TG100_ROM_OPEN:
+    case GUI_FILE_MU5_ROM_OPEN:
+      if (!dirExists(workingDirSample)) workingDirSample=getHomeDir();
+      hasOpened=fileDialog->openLoad(
+        "Load ROM",
+        {"compatible files", "*.rom *.bin",
+         "all files", ".*"},
+        "compatible files{.rom,.bin},.*",
+        workingDirRom,
+        dpiScale
+      );
+      break;
   }
   if (hasOpened) curFileDialog=type;
   //ImGui::GetIO().ConfigFlags|=ImGuiConfigFlags_NavEnableKeyboard;
@@ -3024,6 +3037,11 @@ bool FurnaceGUI::loop() {
         case GUI_FILE_EXPORT_LAYOUT:
           workingDirLayout=fileDialog->getPath()+DIR_SEPARATOR_STR;
           break;
+        case GUI_FILE_YRW801_ROM_OPEN:
+        case GUI_FILE_TG100_ROM_OPEN:
+        case GUI_FILE_MU5_ROM_OPEN:
+          workingDirRom=fileDialog->getPath()+DIR_SEPARATOR_STR;
+          break;
       }
       if (fileDialog->accepted()) {
         fileName=fileDialog->getFileName();
@@ -3237,6 +3255,15 @@ bool FurnaceGUI::loop() {
             case GUI_FILE_EXPORT_LAYOUT:
               exportLayout(copyOfName);
               break;
+            case GUI_FILE_YRW801_ROM_OPEN:
+              settings.yrw801Path=copyOfName;
+              break;
+            case GUI_FILE_TG100_ROM_OPEN:
+              settings.tg100Path=copyOfName;
+              break;
+            case GUI_FILE_MU5_ROM_OPEN:
+              settings.mu5Path=copyOfName;
+              break;
           }
           curFileDialog=GUI_FILE_OPEN;
         }
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 0501e242..03a3d7e3 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -257,7 +257,10 @@ enum FurnaceGUIFileDialogs {
   GUI_FILE_IMPORT_LAYOUT,
   GUI_FILE_EXPORT_COLORS,
   GUI_FILE_EXPORT_KEYBINDS,
-  GUI_FILE_EXPORT_LAYOUT
+  GUI_FILE_EXPORT_LAYOUT,
+  GUI_FILE_YRW801_ROM_OPEN,
+  GUI_FILE_TG100_ROM_OPEN,
+  GUI_FILE_MU5_ROM_OPEN
 };
 
 enum FurnaceGUIWarnings {
@@ -765,7 +768,7 @@ class FurnaceGUI {
   bool updateSampleTex;
 
   String workingDir, fileName, clipboard, warnString, errorString, lastError, curFileName, nextFile;
-  String workingDirSong, workingDirIns, workingDirWave, workingDirSample, workingDirAudioExport, workingDirVGMExport, workingDirFont, workingDirColors, workingDirKeybinds, workingDirLayout;
+  String workingDirSong, workingDirIns, workingDirWave, workingDirSample, workingDirAudioExport, workingDirVGMExport, workingDirFont, workingDirColors, workingDirKeybinds, workingDirLayout, workingDirRom;
   String mmlString[17];
   String mmlStringW;
 
@@ -823,6 +826,9 @@ class FurnaceGUI {
     int saaCore;
     int nesCore;
     int fdsCore;
+    String yrw801Path;
+    String tg100Path;
+    String mu5Path;
     int mainFont;
     int patFont;
     int audioRate;
@@ -910,6 +916,9 @@ class FurnaceGUI {
       saaCore(1),
       nesCore(0),
       fdsCore(0),
+      yrw801Path(""),
+      tg100Path(""),
+      mu5Path(""),
       mainFont(0),
       patFont(0),
       audioRate(44100),
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index e6ba74a2..c38e1dc8 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -883,6 +883,33 @@ void FurnaceGUI::drawSettings() {
           ImGui::Text("FDS core");
           ImGui::SameLine();
           ImGui::Combo("##FDSCore",&settings.fdsCore,nesCores,2);
+
+          ImGui::Separator();
+          ImGui::Text("Sample ROMs:");
+
+          ImGui::Text("OPL4 YRW801 path");
+          ImGui::SameLine();
+          ImGui::InputText("##YRW801Path",&settings.yrw801Path);
+          ImGui::SameLine();
+          if (ImGui::Button(ICON_FA_FOLDER "##YRW801Load")) {
+            openFileDialog(GUI_FILE_YRW801_ROM_OPEN);
+          }
+
+          ImGui::Text("MultiPCM TG100 path");
+          ImGui::SameLine();
+          ImGui::InputText("##TG100Path",&settings.tg100Path);
+          ImGui::SameLine();
+          if (ImGui::Button(ICON_FA_FOLDER "##TG100Load")) {
+            openFileDialog(GUI_FILE_TG100_ROM_OPEN);
+          }
+
+          ImGui::Text("MultiPCM MU5 path");
+          ImGui::SameLine();
+          ImGui::InputText("##MU5Path",&settings.mu5Path);
+          ImGui::SameLine();
+          if (ImGui::Button(ICON_FA_FOLDER "##MU5Load")) {
+            openFileDialog(GUI_FILE_MU5_ROM_OPEN);
+          }
         }
         ImGui::EndChild();
         ImGui::EndTabItem();
@@ -1789,6 +1816,9 @@ void FurnaceGUI::syncSettings() {
   settings.saaCore=e->getConfInt("saaCore",1);
   settings.nesCore=e->getConfInt("nesCore",0);
   settings.fdsCore=e->getConfInt("fdsCore",0);
+  settings.yrw801Path=e->getConfString("yrw801Path","");
+  settings.tg100Path=e->getConfString("tg100Path","");
+  settings.mu5Path=e->getConfString("mu5Path","");
   settings.mainFont=e->getConfInt("mainFont",0);
   settings.patFont=e->getConfInt("patFont",0);
   settings.mainFontPath=e->getConfString("mainFontPath","");
@@ -1960,6 +1990,10 @@ void FurnaceGUI::syncSettings() {
 }
 
 void FurnaceGUI::commitSettings() {
+  bool sampleRomsChanged = settings.yrw801Path!=e->getConfString("yrw801Path","") ||
+    settings.tg100Path!=e->getConfString("tg100Path","") ||
+    settings.mu5Path!=e->getConfString("mu5Path","");
+
   e->setConf("mainFontSize",settings.mainFontSize);
   e->setConf("patFontSize",settings.patFontSize);
   e->setConf("iconSize",settings.iconSize);
@@ -1975,6 +2009,9 @@ void FurnaceGUI::commitSettings() {
   e->setConf("saaCore",settings.saaCore);
   e->setConf("nesCore",settings.nesCore);
   e->setConf("fdsCore",settings.fdsCore);
+  e->setConf("yrw801Path",settings.yrw801Path);
+  e->setConf("tg100Path",settings.tg100Path);
+  e->setConf("mu5Path",settings.mu5Path);
   e->setConf("mainFont",settings.mainFont);
   e->setConf("patFont",settings.patFont);
   e->setConf("mainFontPath",settings.mainFontPath);
@@ -2063,6 +2100,12 @@ void FurnaceGUI::commitSettings() {
 
   e->saveConf();
 
+  if (sampleRomsChanged) {
+    if (e->loadSampleRoms()) {
+      showError(e->getLastError());
+    }
+  }
+
   if (!e->switchMaster()) {
     showError("could not initialize audio!");
   }