14 files changed, 385 insertions, 225 deletions

diff --git a/engines/tinsel/detection.cpp b/engines/tinsel/detection.cpp
index 0f662e22bd..2e4be33e53 100644
--- a/engines/tinsel/detection.cpp
+++ b/engines/tinsel/detection.cpp
@@ -63,6 +63,14 @@ uint16 TinselEngine::getVersion() const {
 	return _gameDescription->version;
 }
 
+bool TinselEngine::getIsADGFDemo() const {
+	return (bool)(_gameDescription->desc.flags & ADGF_DEMO);
+}
+
+bool TinselEngine::isCD() const {
+	return (bool)(_gameDescription->desc.flags & ADGF_CD);
+}
+
 } // End of namespace Tinsel
 
 static const PlainGameDescriptor tinselGames[] = {
diff --git a/engines/tinsel/detection_tables.h b/engines/tinsel/detection_tables.h
index be44b1c462..631c2dce14 100644
--- a/engines/tinsel/detection_tables.h
+++ b/engines/tinsel/detection_tables.h
@@ -47,7 +47,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_DEMO,
+		0,
 		TINSEL_V0,
 	},
 
@@ -61,12 +61,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_ANY,
 			Common::kPlatformPC,
-			ADGF_DEMO,
+			ADGF_DEMO | ADGF_CD,
 			GUIO0()
 		},
 		GID_DW1,
 		0,
-		GF_CD,
+		0,
 		TINSEL_V1,
 	},
 #if 0
@@ -81,12 +81,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_ANY,
 			Common::kPlatformMacintosh,
-			ADGF_DEMO,
+			ADGF_DEMO | ADGF_CD,
 			GUIO0()
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_BIG_ENDIAN,
+		GF_SCNFILES,
 		TINSEL_V1,
 	},
 #endif
@@ -110,7 +110,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_FLOPPY | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -133,7 +133,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_FLOPPY | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -156,7 +156,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_FLOPPY | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -179,7 +179,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_FLOPPY | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -195,7 +195,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_FLOPPY | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -214,7 +214,42 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_ENHANCED_AUDIO_SUPPORT,
+		TINSEL_V1,
+	},
+
+	{	// Polish fan translation CD V1 version, with *.gra files (same as the floppy one, with english.smp)
+		{
+			"dw",
+			"CD",
+			{
+				{"dw.gra", 0, "ef05bbd2a754bd11a2e87bcd84ab5ccf", 781864},
+				{"english.smp", 0, NULL, -1},
+			},
+			Common::EN_ANY,
+			Common::kPlatformPC,
+			ADGF_CD,
+			GUIO_NONE
+		},
+		GID_DW1,
+		0,
+		GF_ENHANCED_AUDIO_SUPPORT,
+		TINSEL_V1,
+	},
+
+	{	// Polish fan translaction floppy V1 version, with *.gra files
+		{
+			"dw",
+			"Floppy",
+			AD_ENTRY1s("dw.gra", "ef05bbd2a754bd11a2e87bcd84ab5ccf", 781864),
+			Common::EN_ANY,
+			Common::kPlatformPC,
+			ADGF_NO_FLAGS,
+			GUIO_NOSPEECH
+		},
+		GID_DW1,
+		0,
+		GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -236,7 +271,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -261,7 +296,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -280,12 +315,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::DE_DEU,
 			Common::kPlatformPC,
-			ADGF_DROPLANGUAGE | ADGF_CD,
+			ADGF_DROPLANGUAGE,
 			GUIO0()
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 	{
@@ -308,7 +343,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 	{
@@ -331,7 +366,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_USE_4FLAGS | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -351,7 +386,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -371,7 +406,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -390,14 +425,14 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
 	{	// multilanguage PSX demo
 		{
 			"dw",
-			"CD demo",
+			"CD Demo",
 			{
 				{"french.txt", 0, "e7020d35f58d0d187052ac406d86cc87", 273914},
 				{"german.txt", 0, "52f0a01e0ff0d340b02a36fd5109d705", 263942},
@@ -408,12 +443,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_ANY,
 			Common::kPlatformPSX,
-			ADGF_DEMO,
+			ADGF_CD | ADGF_DEMO,
 			GUIO0()
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V1,
 	},
 
@@ -434,7 +469,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 #endif
@@ -456,7 +491,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT | GF_BIG_ENDIAN,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
@@ -475,7 +510,7 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT | GF_ALT_MIDI,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT | GF_ALT_MIDI,
 		TINSEL_V1,
 	},
 
@@ -496,11 +531,32 @@ static const TinselGameDescription gameDescriptions[] = {
 		},
 		GID_DW1,
 		0,
-		GF_CD | GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
+		TINSEL_V1,
+	},
+
+	{	// Polish fan translaction Discworld 1
+		{
+			"dw",
+			"CD",
+			{
+				{"dw.scn", 0, "fa169d2c98660215ebd84b49c1899eef", 776396},
+				{"english.txt", 0, "c1a53eb7ec812689dab70e2bb22cf2ab", 224151},
+				{"english.smp", 0, NULL, -1},
+				{NULL, 0, NULL, 0}
+			},
+			Common::PL_POL,
+			Common::kPlatformPC,
+			ADGF_CD,
+			GUIO_NONE
+		},
+		GID_DW1,
+		0,
+		GF_SCNFILES | GF_ENHANCED_AUDIO_SUPPORT,
 		TINSEL_V1,
 	},
 
-	{	// English DW2 demo
+	{	// English Discworld 2 demo
 		{
 			"dw2",
 			"Demo",
@@ -511,12 +567,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_ANY,
 			Common::kPlatformPC,
-			ADGF_DEMO,
+			ADGF_DEMO | ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES | GF_DEMO,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -531,12 +587,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_GRB,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -551,12 +607,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::EN_USA,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -571,12 +627,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::FR_FRA,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -591,12 +647,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::DE_DEU,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -612,12 +668,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::IT_ITA,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 	{
@@ -632,12 +688,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::ES_ESP,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
@@ -653,12 +709,12 @@ static const TinselGameDescription gameDescriptions[] = {
 			},
 			Common::RU_RUS,
 			Common::kPlatformPC,
-			ADGF_NO_FLAGS,
+			ADGF_CD,
 			GUIO1(GUIO_NOASPECT)
 		},
 		GID_DW2,
 		0,
-		GF_CD | GF_SCNFILES,
+		GF_SCNFILES,
 		TINSEL_V2,
 	},
 
diff --git a/engines/tinsel/dialogs.cpp b/engines/tinsel/dialogs.cpp
index fbe9e8d1f6..56ee2ea752 100644
--- a/engines/tinsel/dialogs.cpp
+++ b/engines/tinsel/dialogs.cpp
@@ -753,6 +753,11 @@ static CONFBOX t1RestartBox[] = {
 #endif
 };
 
+static CONFBOX t1RestartBoxPSX[] = {
+	{ AAGBUT, INITGAME, TM_NONE, NULL, USE_POINTER, 122, 48,	23, 19, NULL, IX1_TICK1 },
+	{ AAGBUT, CLOSEWIN, TM_NONE, NULL, USE_POINTER, 82, 48,	23, 19, NULL, IX1_CROSS1 }
+};
+
 static CONFBOX t2RestartBox[] = {
 	{ AAGBUT, INITGAME, TM_NONE, NULL, 0, 140, 78, BW, BH, NULL, IX2_TICK1 },
 	{ AAGBUT, CLOSEWIN, TM_NONE, NULL, 0, 60, 78,  BW, BH, NULL, IX2_CROSS1 }
@@ -763,10 +768,10 @@ static CONFINIT t1ciRestart	= { 6, 2, 72, 53, false, t1RestartBox,	ARRAYSIZE(t1R
 #else
 static CONFINIT t1ciRestart	= { 4, 2, 98, 53, false, t1RestartBox,	ARRAYSIZE(t1RestartBox),	SIX_RESTART_HEADING };
 #endif
+static CONFINIT t1ciRestartPSX	= { 8, 2, 46, 53, false, t1RestartBoxPSX,	ARRAYSIZE(t1RestartBoxPSX),	SIX_RESTART_HEADING };
 static CONFINIT t2ciRestart	= { 4, 2, 196, 53, false, t2RestartBox, sizeof(t2RestartBox)/sizeof(CONFBOX), SS_RESTART_HEADING };
 
-#define ciRestart (TinselV2 ? t2ciRestart : t1ciRestart)
-#define restartBox (TinselV2 ? t2RestartBox : t1RestartBox)
+#define ciRestart (TinselV2 ? t2ciRestart : (TinselV1PSX ? t1ciRestartPSX : t1ciRestart))
 
 /*-------------------------------------------------------------*\
 | This is the sound control 'menu'. In Discworld 2, it also		|
@@ -1038,18 +1043,20 @@ static bool RePosition();
 static bool LanguageChange() {
 	LANGUAGE nLang = _vm->_config->_language;
 
-	if (_vm->getFeatures() & GF_USE_3FLAGS) {
-		// VERY quick dodgy bodge
-		if (cd.selBox == 0)
-			nLang = TXT_FRENCH;		// = 1
-		else if (cd.selBox == 1)
-			nLang = TXT_GERMAN;		// = 2
-		else
-			nLang = TXT_SPANISH;	// = 4
-	} else if (_vm->getFeatures() & GF_USE_4FLAGS) {
-		nLang = (LANGUAGE)(cd.selBox + 1);
-	} else if (_vm->getFeatures() & GF_USE_5FLAGS) {
-		nLang = (LANGUAGE)cd.selBox;
+	if ((_vm->getFeatures() & GF_USE_3FLAGS) || (_vm->getFeatures() & GF_USE_4FLAGS) || (_vm->getFeatures() & GF_USE_5FLAGS)) {
+		// Languages: TXT_ENGLISH, TXT_FRENCH, TXT_GERMAN, TXT_ITALIAN, TXT_SPANISH
+		// 5 flag versions include English
+		int selected = (_vm->getFeatures() & GF_USE_5FLAGS) ? cd.selBox : cd.selBox + 1;
+		// Make sure that a language flag has been selected. If the user has
+		// changed the language speed slider and hasn't clicked on a flag, it
+		// won't be selected.
+		if (selected >= 0 && selected <= 4) {
+			nLang = (LANGUAGE)selected;
+
+			// 3 flag versions don't include Italian
+			if (selected >= 3 && (_vm->getFeatures() & GF_USE_3FLAGS))
+				nLang = TXT_SPANISH;
+		}
 	}
 
 	if (nLang != _vm->_config->_language) {
@@ -1256,6 +1263,20 @@ static INV_OBJECT *GetInvObject(int id) {
 }
 
 /**
+ * Returns true if the given id represents a valid inventory object
+ */
+bool GetIsInvObject(int id) {
+	INV_OBJECT *pObject = g_invObjects;
+
+	for (int i = 0; i < g_numObjects; i++, pObject++) {
+		if (pObject->id == id)
+			return true;
+	}
+
+	return false;
+}
+
+/**
  * Convert item ID number to index.
  */
 static int GetObjectIndex(int id) {
diff --git a/engines/tinsel/dialogs.h b/engines/tinsel/dialogs.h
index 8c48eb8b76..ab53ba771c 100644
--- a/engines/tinsel/dialogs.h
+++ b/engines/tinsel/dialogs.h
@@ -152,6 +152,8 @@ void InvSetLimit(int invno, int n);
 void InvSetSize(int invno, int MinWidth, int MinHeight,
 		int StartWidth, int StartHeight, int MaxWidth, int MaxHeight);
 
+bool GetIsInvObject(int id);
+
 int WhichInventoryOpen();
 
 bool IsTopWindow();
diff --git a/engines/tinsel/drives.cpp b/engines/tinsel/drives.cpp
index 5c4b939e4e..3ecef83753 100644
--- a/engines/tinsel/drives.cpp
+++ b/engines/tinsel/drives.cpp
@@ -149,7 +149,7 @@ bool GotoCD() {
 
 bool TinselFile::_warningShown = false;
 
-TinselFile::TinselFile() : ReadStreamEndian((_vm->getFeatures() & GF_BIG_ENDIAN) != 0) {
+TinselFile::TinselFile() : ReadStreamEndian(TinselV1Mac) {
 	_stream = NULL;
 }
 
diff --git a/engines/tinsel/handle.cpp b/engines/tinsel/handle.cpp
index c3089db990..14d588dcec 100644
--- a/engines/tinsel/handle.cpp
+++ b/engines/tinsel/handle.cpp
@@ -99,14 +99,16 @@ void SetupHandleTable() {
 	MEMHANDLE *pH;
 	TinselFile f;
 
-	if (f.open(TinselV1PSX? PSX_INDEX_FILENAME : INDEX_FILENAME)) {
+	const char *indexFileName = TinselV1PSX ? PSX_INDEX_FILENAME : INDEX_FILENAME;
+
+	if (f.open(indexFileName)) {
 		// get size of index file
 		len = f.size();
 
 		if (len > 0) {
 			if ((len % RECORD_SIZE) != 0) {
 				// index file is corrupt
-				error(FILE_IS_CORRUPT, TinselV1PSX? PSX_INDEX_FILENAME : INDEX_FILENAME);
+				error(FILE_IS_CORRUPT, indexFileName);
 			}
 
 			// calc number of handles
@@ -132,16 +134,16 @@ void SetupHandleTable() {
 
 			if (f.eos() || f.err()) {
 				// index file is corrupt
-				error(FILE_IS_CORRUPT, (TinselV1PSX? PSX_INDEX_FILENAME : INDEX_FILENAME));
+				error(FILE_IS_CORRUPT, indexFileName);
 			}
 
 			// close the file
 			f.close();
 		} else {	// index file is corrupt
-			error(FILE_IS_CORRUPT, (TinselV1PSX? PSX_INDEX_FILENAME : INDEX_FILENAME));
+			error(FILE_IS_CORRUPT, indexFileName);
 		}
 	} else {	// cannot find the index file
-		error(CANNOT_FIND_FILE, (TinselV1PSX? PSX_INDEX_FILENAME : INDEX_FILENAME));
+		error(CANNOT_FIND_FILE, indexFileName);
 	}
 
 	// allocate memory nodes and load all permanent graphics
diff --git a/engines/tinsel/music.cpp b/engines/tinsel/music.cpp
index 781a378f13..b3bfbcc5dc 100644
--- a/engines/tinsel/music.cpp
+++ b/engines/tinsel/music.cpp
@@ -131,21 +131,13 @@ bool PlayMidiSequence(uint32 dwFileOffset, bool bLoop) {
 	g_currentMidi = dwFileOffset;
 	g_currentLoop = bLoop;
 
-	// Tinsel V1 PSX uses a different music format, so i
-	// disable it here.
-	// TODO: Maybe this should be moved to a better place...
-	if (TinselV1PSX) return false;
+	bool mute = false;
+	if (ConfMan.hasKey("mute"))
+		mute = ConfMan.getBool("mute");
 
-	if (_vm->_config->_musicVolume != 0) {
-		bool mute = false;
-		if (ConfMan.hasKey("mute"))
-			mute = ConfMan.getBool("mute");
-
-		SetMidiVolume(mute ? 0 : _vm->_config->_musicVolume);
-	}
+	SetMidiVolume(mute ? 0 : _vm->_config->_musicVolume);
 
 	// the index and length of the last tune loaded
-	static uint32 dwLastMidiIndex = 0;	// FIXME: Avoid non-const global vars
 	uint32 dwSeqLen = 0;	// length of the sequence
 
 	// Support for external music from the music enhancement project
@@ -186,61 +178,53 @@ bool PlayMidiSequence(uint32 dwFileOffset, bool bLoop) {
 	if (dwFileOffset == 0)
 		return true;
 
-	if (dwFileOffset != dwLastMidiIndex) {
-		Common::File midiStream;
-
-		// open MIDI sequence file in binary mode
-		if (!midiStream.open(MIDI_FILE))
-			error(CANNOT_FIND_FILE, MIDI_FILE);
-
-		// update index of last tune loaded
-		dwLastMidiIndex = dwFileOffset;
-
-		// move to correct position in the file
-		midiStream.seek(dwFileOffset, SEEK_SET);
-
-		// read the length of the sequence
-		dwSeqLen = midiStream.readUint32LE();
-
-		// make sure buffer is large enough for this sequence
-		assert(dwSeqLen > 0 && dwSeqLen <= g_midiBuffer.size);
-
-		// stop any currently playing tune
-		_vm->_midiMusic->stop();
-
-		// read the sequence
-		if (midiStream.read(g_midiBuffer.pDat, dwSeqLen) != dwSeqLen)
-			error(FILE_IS_CORRUPT, MIDI_FILE);
-
-		midiStream.close();
-
-		// WORKAROUND for bug #2820054 "DW1: No intro music at first start on Wii",
-		// which actually affects all ports, since it's specific to the GRA version.
-		//
-		// The GRA version does not seem to set the channel volume at all for the first
-		// intro track, thus we need to do that here. We only initialize the channels
-		// used in that sequence. And we are using 127 as default channel volume.
-		//
-		// Only in the GRA version dwFileOffset can be "38888", just to be sure, we
-		// check for the SCN files feature flag not being set though.
-		if (_vm->getGameID() == GID_DW1 && dwFileOffset == 38888 && !(_vm->getFeatures() & GF_SCNFILES)) {
-			_vm->_midiMusic->send(0x7F07B0 |  3);
-			_vm->_midiMusic->send(0x7F07B0 |  5);
-			_vm->_midiMusic->send(0x7F07B0 |  8);
-			_vm->_midiMusic->send(0x7F07B0 | 10);
-			_vm->_midiMusic->send(0x7F07B0 | 13);
-		}
+	Common::File midiStream;
 
-		_vm->_midiMusic->playXMIDI(g_midiBuffer.pDat, dwSeqLen, bLoop);
+	// open MIDI sequence file in binary mode
+	if (!midiStream.open(MIDI_FILE))
+		error(CANNOT_FIND_FILE, MIDI_FILE);
 
-		// Store the length
-		//dwLastSeqLen = dwSeqLen;
-	} else {
-	 	// dwFileOffset == dwLastMidiIndex
-		_vm->_midiMusic->stop();
-		_vm->_midiMusic->playXMIDI(g_midiBuffer.pDat, dwSeqLen, bLoop);
+	// move to correct position in the file
+	midiStream.seek(dwFileOffset, SEEK_SET);
+
+	// read the length of the sequence
+	dwSeqLen = midiStream.readUint32LE();
+
+	// make sure buffer is large enough for this sequence
+	assert(dwSeqLen > 0 && dwSeqLen <= g_midiBuffer.size);
+
+	// stop any currently playing tune
+	_vm->_midiMusic->stop();
+
+	// read the sequence. This needs to be read again before playSEQ() is
+	// called even if the music is restarting, as playSEQ() reads the file
+	// name off the buffer itself. However, that function adds SMF headers
+	// to the buffer, thus if it's read again, the SMF headers will be read
+	// and the filename will always be 'MThd'.
+	if (midiStream.read(g_midiBuffer.pDat, dwSeqLen) != dwSeqLen)
+		error(FILE_IS_CORRUPT, MIDI_FILE);
+
+	midiStream.close();
+
+	// WORKAROUND for bug #2820054 "DW1: No intro music at first start on Wii",
+	// which actually affects all ports, since it's specific to the GRA version.
+	//
+	// The GRA version does not seem to set the channel volume at all for the first
+	// intro track, thus we need to do that here. We only initialize the channels
+	// used in that sequence. And we are using 127 as default channel volume.
+	//
+	// Only in the GRA version dwFileOffset can be "38888", just to be sure, we
+	// check for the SCN files feature flag not being set though.
+	if (_vm->getGameID() == GID_DW1 && dwFileOffset == 38888 && !(_vm->getFeatures() & GF_SCNFILES)) {
+		_vm->_midiMusic->send(0x7F07B0 |  3);
+		_vm->_midiMusic->send(0x7F07B0 |  5);
+		_vm->_midiMusic->send(0x7F07B0 |  8);
+		_vm->_midiMusic->send(0x7F07B0 | 10);
+		_vm->_midiMusic->send(0x7F07B0 | 13);
 	}
 
+	_vm->_midiMusic->playMIDI(dwSeqLen, bLoop);
+
 	return true;
 }
 
@@ -284,27 +268,7 @@ int GetMidiVolume() {
  */
 void SetMidiVolume(int vol) {
 	assert(vol >= 0 && vol <= Audio::Mixer::kMaxChannelVolume);
-
-	static int priorVolMusic = 0;	// FIXME: Avoid non-const global vars
-
-	if (vol == 0 && priorVolMusic == 0)	{
-		// Nothing to do
-	} else if (vol == 0 && priorVolMusic != 0) {
-		// Stop current midi sequence
-		StopMidi();
-		_vm->_midiMusic->setVolume(vol);
-	} else if (vol != 0 && priorVolMusic == 0) {
-		// Perhaps restart last midi sequence
-		if (g_currentLoop)
-			PlayMidiSequence(g_currentMidi, true);
-
-		_vm->_midiMusic->setVolume(vol);
-	} else if (vol != 0 && priorVolMusic != 0) {
-		// Alter current volume
-		_vm->_midiMusic->setVolume(vol);
-	}
-
-	priorVolMusic = vol;
+	_vm->_midiMusic->setVolume(vol);
 }
 
 /**
@@ -314,8 +278,7 @@ void OpenMidiFiles() {
 	Common::File midiStream;
 
 	// Demo version has no midi file
-	// Also, Discworld PSX uses still unsupported psx SEQ format for music...
-	if ((_vm->getFeatures() & GF_DEMO) || (TinselVersion == TINSEL_V2) || TinselV1PSX)
+	if (TinselV0 || TinselV2)
 		return;
 
 	if (g_midiBuffer.pDat)
@@ -412,7 +375,7 @@ void MidiMusicPlayer::send(uint32 b) {
 	}
 }
 
-void MidiMusicPlayer::playXMIDI(byte *midiData, uint32 size, bool loop) {
+void MidiMusicPlayer::playMIDI(uint32 size, bool loop) {
 	Common::StackLock lock(_mutex);
 
 	if (_isPlaying)
@@ -420,6 +383,13 @@ void MidiMusicPlayer::playXMIDI(byte *midiData, uint32 size, bool loop) {
 
 	stop();
 
+	if (TinselV1PSX)
+		playSEQ(size, loop);
+	else
+		playXMIDI(size, loop);
+}
+
+void MidiMusicPlayer::playXMIDI(uint32 size, bool loop) {
 	// It seems like not all music (the main menu music, for instance) set
 	// all the instruments explicitly. That means the music will sound
 	// different, depending on which music played before it. This appears
@@ -433,7 +403,78 @@ void MidiMusicPlayer::playXMIDI(byte *midiData, uint32 size, bool loop) {
 	// Load XMID resource data
 
 	MidiParser *parser = MidiParser::createParser_XMIDI();
-	if (parser->loadMusic(midiData, size)) {
+	if (parser->loadMusic(g_midiBuffer.pDat, size)) {
+		parser->setTrack(0);
+		parser->setMidiDriver(this);
+		parser->setTimerRate(getBaseTempo());
+		parser->property(MidiParser::mpCenterPitchWheelOnUnload, 1);
+		parser->property(MidiParser::mpSendSustainOffOnNotesOff, 1);
+
+		_parser = parser;
+
+		_isLooping = loop;
+		_isPlaying = true;
+	} else {
+		delete parser;
+	}
+}
+
+void MidiMusicPlayer::playSEQ(uint32 size, bool loop) {
+	// MIDI.DAT holds the file names in DW1 PSX
+	Common::String baseName((char *)g_midiBuffer.pDat, size);
+	Common::String seqName = baseName + ".SEQ";
+
+	// TODO: Load the instrument bank (<baseName>.VB and <baseName>.VH)
+
+	Common::File seqFile;
+	if (!seqFile.open(seqName))
+		error("Failed to open SEQ file '%s'", seqName.c_str());
+
+	if (seqFile.readUint32LE() != MKTAG('S', 'E', 'Q', 'p'))
+		error("Failed to find SEQp tag");
+
+	// Make sure we don't have a SEP file (with multiple SEQ's inside)
+	if (seqFile.readUint32BE() != 1)
+		error("Can only play SEQ files, not SEP");
+
+	uint16 ppqn = seqFile.readUint16BE();
+	uint32 tempo = seqFile.readUint16BE() << 8;
+	tempo |= seqFile.readByte();
+	/* uint16 beat = */ seqFile.readUint16BE();
+
+	// SEQ is directly based on SMF and we'll use that to our advantage here
+	// and convert to SMF and then use the SMF MidiParser.
+
+	// Calculate the SMF size we'll need
+	uint32 dataSize = seqFile.size() - 15;
+	uint32 actualSize = dataSize + 7 + 22;
+
+	// Resize the buffer if necessary
+	if (g_midiBuffer.size < actualSize) {
+		g_midiBuffer.pDat = (byte *)realloc(g_midiBuffer.pDat, actualSize);
+		assert(g_midiBuffer.pDat);
+	}
+
+	// Now construct the header
+	WRITE_BE_UINT32(g_midiBuffer.pDat, MKTAG('M', 'T', 'h', 'd'));
+	WRITE_BE_UINT32(g_midiBuffer.pDat + 4, 6); // header size
+	WRITE_BE_UINT16(g_midiBuffer.pDat + 8, 0); // type 0
+	WRITE_BE_UINT16(g_midiBuffer.pDat + 10, 1); // one track
+	WRITE_BE_UINT16(g_midiBuffer.pDat + 12, ppqn);
+	WRITE_BE_UINT32(g_midiBuffer.pDat + 14, MKTAG('M', 'T', 'r', 'k'));
+	WRITE_BE_UINT32(g_midiBuffer.pDat + 18, dataSize + 7); // SEQ data size + tempo change event size
+
+	// Add in a fake tempo change event
+	WRITE_BE_UINT32(g_midiBuffer.pDat + 22, 0x00FF5103); // no delta, meta event, tempo change, param size = 3
+	WRITE_BE_UINT16(g_midiBuffer.pDat + 26, tempo >> 8);
+	g_midiBuffer.pDat[28] = tempo & 0xFF;
+
+	// Now copy in the rest of the events
+	seqFile.read(g_midiBuffer.pDat + 29, dataSize);
+	seqFile.close();
+
+	MidiParser *parser = MidiParser::createParser_SMF();
+	if (parser->loadMusic(g_midiBuffer.pDat, actualSize)) {
 		parser->setTrack(0);
 		parser->setMidiDriver(this);
 		parser->setTimerRate(getBaseTempo());
@@ -870,14 +911,12 @@ void RestoreMidiFacts(SCNHANDLE	Midi, bool Loop) {
 	g_currentMidi = Midi;
 	g_currentLoop = Loop;
 
-	if (_vm->_config->_musicVolume != 0 && Loop) {
-		bool mute = false;
-		if (ConfMan.hasKey("mute"))
-			mute = ConfMan.getBool("mute");
+	bool mute = false;
+	if (ConfMan.hasKey("mute"))
+		mute = ConfMan.getBool("mute");
 
-		PlayMidiSequence(g_currentMidi, true);
-		SetMidiVolume(mute ? 0 : _vm->_config->_musicVolume);
-	}
+	PlayMidiSequence(g_currentMidi, true);
+	SetMidiVolume(mute ? 0 : _vm->_config->_musicVolume);
 }
 
 #if 0
diff --git a/engines/tinsel/music.h b/engines/tinsel/music.h
index d43fed268d..121bf3d79b 100644
--- a/engines/tinsel/music.h
+++ b/engines/tinsel/music.h
@@ -64,7 +64,7 @@ public:
 
 	virtual void setVolume(int volume);
 
-	void playXMIDI(byte *midiData, uint32 size, bool loop);
+	void playMIDI(uint32 size, bool loop);
 
 //	void stop();
 	void pause();
@@ -76,6 +76,10 @@ public:
 	// The original sets the "sequence timing" to 109 Hz, whatever that
 	// means. The default is 120.
 	uint32 getBaseTempo()	{ return _driver ? (109 * _driver->getBaseTempo()) / 120 : 0; }
+
+private:
+	void playXMIDI(uint32 size, bool loop);
+	void playSEQ(uint32 size, bool loop);
 };
 
 class PCMMusicPlayer : public Audio::AudioStream {
diff --git a/engines/tinsel/pcode.cpp b/engines/tinsel/pcode.cpp
index 60f04b47fd..6ea18c8268 100644
--- a/engines/tinsel/pcode.cpp
+++ b/engines/tinsel/pcode.cpp
@@ -122,6 +122,8 @@ static uint32 g_hMasterScript;
 struct WorkaroundEntry {
 	TinselEngineVersion version;	///< Engine version this workaround applies to
 	bool scnFlag;					///< Only applicable for Tinsel 1 (DW 1)
+	bool isDemo;					///< Flags whether it's for a demo
+	Common::Platform platform;		///< Platform filter
 	SCNHANDLE hCode;				///< Script to apply fragment to
 	int ip;							///< Script offset to run this fragment before
 	int numBytes;					///< Number of bytes in the script
@@ -129,6 +131,7 @@ struct WorkaroundEntry {
 };
 
 #define FRAGMENT_WORD(x)	(byte)(x & 0xFF), (byte)(x >> 8)
+#define FRAGMENT_DWORD(x)	(byte)(x & 0xFF), (byte)(x >> 8), (byte)(x >> 16), (byte)(x >> 24)
 
 static const byte fragment1[] = {OP_ZERO, OP_GSTORE | OPSIZE16, 206, 0};
 static const byte fragment2[] = {OP_LIBCALL | OPSIZE8, 110};
@@ -149,6 +152,10 @@ static const byte fragment12[] = {OP_JMPTRUE | OPSIZE16, FRAGMENT_WORD(1491),
 		OP_IMM | OPSIZE16, FRAGMENT_WORD(322), OP_LIBCALL | OPSIZE8, 46,	// Give back the whistle
 		OP_JUMP | OPSIZE16, FRAGMENT_WORD(1568)};
 static const byte fragment13[] = {OP_ZERO, OP_GSTORE | OPSIZE16, FRAGMENT_WORD(306)};
+static const byte fragment14[] = {OP_LIBCALL | OPSIZE8, 58, 
+		OP_IMM, FRAGMENT_DWORD((42 << 23)), OP_ONE, OP_ZERO, OP_LIBCALL | OPSIZE8, 44,
+		OP_LIBCALL | OPSIZE8, 97, OP_JUMP | OPSIZE16, FRAGMENT_WORD(2220)
+};
 
 #undef FRAGMENT_WORD
 
@@ -157,7 +164,7 @@ const WorkaroundEntry workaroundList[] = {
 	// book back to the present. In the GRA version, it was global 373,
 	// and was reset when he is returned to the past, but was forgotten
 	// in the SCN version, so this ensures the flag is properly reset.
-	{TINSEL_V1, true, 427942095, 1, sizeof(fragment1), fragment1},
+	{TINSEL_V1, true, false, Common::kPlatformUnknown, 427942095, 1, sizeof(fragment1), fragment1},
 
 	// DW1-GRA: Rincewind exiting the Inn is blocked by the luggage.
 	// Whilst you can then move into walkable areas, saving and
@@ -165,26 +172,26 @@ const WorkaroundEntry workaroundList[] = {
 	// fragment turns off NPC blocking for the Outside Inn rooms so that
 	// the luggage won't block Past Outside Inn.
 	// See bug report #2525010.
-	{TINSEL_V1, false, 444622076, 0,  sizeof(fragment2), fragment2},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 444622076, 0,  sizeof(fragment2), fragment2},
 	// Present Outside Inn
-	{TINSEL_V1, false, 352600876, 0,  sizeof(fragment2), fragment2},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 352600876, 0,  sizeof(fragment2), fragment2},
 
 	// DW1-GRA: Talking to palace guards in Act 2 gives !!!HIGH
 	// STRING||| - this happens if you initiate dialog with one of the
 	// guards, but not the other. So these fragments provide the correct
 	// talk parameters where needed.
 	// See bug report #2831159.
-	{TINSEL_V1, false, 310506872, 463, sizeof(fragment4), fragment4},
-	{TINSEL_V1, false, 310506872, 485, sizeof(fragment5), fragment5},
-	{TINSEL_V1, false, 310506872, 513, sizeof(fragment6), fragment6},
-	{TINSEL_V1, false, 310506872, 613, sizeof(fragment7), fragment7},
-	{TINSEL_V1, false, 310506872, 641, sizeof(fragment8), fragment8},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 310506872, 463, sizeof(fragment4), fragment4},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 310506872, 485, sizeof(fragment5), fragment5},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 310506872, 513, sizeof(fragment6), fragment6},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 310506872, 613, sizeof(fragment7), fragment7},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 310506872, 641, sizeof(fragment8), fragment8},
 
 	// DW1-SCN: The script for the lovable street-Starfish does a
 	// 'StopSample' after flicking the coin to ensure it's sound is
 	// stopped, but which also accidentally can stop any active
 	// conversation with the Amazon.
-	{TINSEL_V1, true, 394640351, 121, sizeof(fragment9), fragment9},
+	{TINSEL_V1, true, false, Common::kPlatformUnknown, 394640351, 121, sizeof(fragment9), fragment9},
 
 	// DW2: In the garden, global #490 is set when the bees begin their
 	// 'out of hive' animation, and reset when done. But if the game is
@@ -197,25 +204,29 @@ const WorkaroundEntry workaroundList[] = {
 	//  * Stealing the mallets from the wizards (bug #2820788).
 	// This fix ensures that the global is reset when the Garden scene
 	// is loaded (both entering and restoring a game).
-	{TINSEL_V2, true, 2888147476U, 0, sizeof(fragment3), fragment3},
+	{TINSEL_V2, true, false, Common::kPlatformUnknown, 2888147476U, 0, sizeof(fragment3), fragment3},
 
 	// DW1-GRA: Corrects text being drawn partially off-screen during
 	// the blackboard description of the Librarian.
-	{TINSEL_V1, false, 293831402, 133, sizeof(fragment10), fragment10},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 293831402, 133, sizeof(fragment10), fragment10},
 
 	// DW1-GRA/SCN: Corrects the dead-end of being able to give the
 	// whistle back to the pirate before giving him the parrot.
 	// See bug report #2934211.
-	{TINSEL_V1, true, 352601285, 1569, sizeof(fragment11), fragment11},
-	{TINSEL_V1, false, 352602304, 1488, sizeof(fragment12), fragment12},
+	{TINSEL_V1, true, false, Common::kPlatformUnknown, 352601285, 1569, sizeof(fragment11), fragment11},
+	{TINSEL_V1, false, false, Common::kPlatformUnknown, 352602304, 1488, sizeof(fragment12), fragment12},
 
 	// DW2: Corrects a bug with global 306 not being cleared if you leave
 	// the marketplace scene whilst D'Blah is talking (even if it's not
 	// actually audible); returning to the scene and clicking on him multiple
 	// times would cause the game to crash
-	{TINSEL_V2, true, 1109294728, 0, sizeof(fragment13), fragment13},
+	{TINSEL_V2, true, false, Common::kPlatformUnknown, 1109294728, 0, sizeof(fragment13), fragment13},
+
+	// DW1 PSX DEMO: Alters a script in the PSX DW1 demo to show the Idle animation scene rather than 
+	// quitting the game when no user input happens for a while
+	{TINSEL_V1, true, true, Common::kPlatformPSX, 0, 2186, sizeof(fragment14), fragment14},
 
-	{TINSEL_V0, false, 0, 0, 0, NULL}
+	{TINSEL_V0, false, false, Common::kPlatformUnknown, 0, 0, 0, NULL}
 };
 
 //----------------- LOCAL GLOBAL DATA --------------------
@@ -582,6 +593,8 @@ void Interpret(CORO_PARAM, INT_CONTEXT *ic) {
 				if ((wkEntry->version == TinselVersion) &&
 					(wkEntry->hCode == ic->hCode) &&
 					(wkEntry->ip == ip) &&
+					(wkEntry->isDemo == _vm->getIsADGFDemo()) &&
+					((wkEntry->platform == Common::kPlatformUnknown) || (wkEntry->platform == _vm->getPlatform())) &&
 					(!TinselV1 || (wkEntry->scnFlag == ((_vm->getFeatures() & GF_SCNFILES) != 0)))) {
 					// Point to start of workaround fragment
 					ip = 0;
diff --git a/engines/tinsel/saveload.cpp b/engines/tinsel/saveload.cpp
index 0a552c8c2b..518e27f02b 100644
--- a/engines/tinsel/saveload.cpp
+++ b/engines/tinsel/saveload.cpp
@@ -55,8 +55,7 @@ namespace Tinsel {
  * only saves/loads those which are valid for the version of the savegame
  * which is being loaded/saved currently.
  */
-#define CURRENT_VER 1
-// TODO: Not yet used
+#define CURRENT_VER 2
 
 /**
  * An auxillary macro, used to specify savegame versions. We use this instead
@@ -97,12 +96,13 @@ struct SaveGameHeader {
 	TimeDate dateTime;
 	bool scnFlag;
 	byte language;
+	uint16 numInterpreters;			// Savegame version 2 or later only
 };
 
 enum {
 	DW1_SAVEGAME_ID = 0x44575399,	// = 'DWSc' = "DiscWorld 1 ScummVM"
 	DW2_SAVEGAME_ID = 0x44573253,	// = 'DW2S' = "DiscWorld 2 ScummVM"
-	SAVEGAME_HEADER_SIZE = 4 + 4 + 4 + SG_DESC_LEN + 7 + 1 + 1
+	SAVEGAME_HEADER_SIZE = 4 + 4 + 4 + SG_DESC_LEN + 7 + 1 + 1 + 2
 };
 
 #define SAVEGAME_ID (TinselV2 ? (uint32)DW2_SAVEGAME_ID : (uint32)DW1_SAVEGAME_ID)
@@ -186,6 +186,15 @@ static bool syncSaveGameHeader(Common::Serializer &s, SaveGameHeader &hdr) {
 		}
 	}
 
+	// Handle the number of interpreter contexts that will be saved in the savegame
+	if (tmp >= 2) {
+		tmp -= 2;
+		hdr.numInterpreters = NUM_INTERPRET;
+		s.syncAsUint16LE(hdr.numInterpreters);
+	} else {
+		hdr.numInterpreters = (TinselV2 ? 70 : 64) - 20;
+	}
+
 	// Skip over any extra bytes
 	s.skip(tmp);
 	return true;
@@ -262,7 +271,7 @@ static void syncSoundReel(Common::Serializer &s, SOUNDREELS &sr) {
 	s.syncAsSint32LE(sr.actorCol);
 }
 
-static void syncSavedData(Common::Serializer &s, SAVED_DATA &sd) {
+static void syncSavedData(Common::Serializer &s, SAVED_DATA &sd, int numInterp) {
 	s.syncAsUint32LE(sd.SavedSceneHandle);
 	s.syncAsUint32LE(sd.SavedBgroundHandle);
 	for (int i = 0; i < MAX_MOVERS; ++i)
@@ -273,7 +282,7 @@ static void syncSavedData(Common::Serializer &s, SAVED_DATA &sd) {
 	s.syncAsSint32LE(sd.NumSavedActors);
 	s.syncAsSint32LE(sd.SavedLoffset);
 	s.syncAsSint32LE(sd.SavedToffset);
-	for (int i = 0; i < NUM_INTERPRET; ++i)
+	for (int i = 0; i < numInterp; ++i)
 		sd.SavedICInfo[i].syncWithSerializer(s);
 	for (int i = 0; i < MAX_POLY; ++i)
 		s.syncAsUint32LE(sd.SavedDeadPolys[i]);
@@ -422,7 +431,7 @@ char *ListEntry(int i, letype which) {
 		return NULL;
 }
 
-static void DoSync(Common::Serializer &s) {
+static bool DoSync(Common::Serializer &s, int numInterp) {
 	int	sg = 0;
 
 	if (TinselV2) {
@@ -434,7 +443,7 @@ static void DoSync(Common::Serializer &s) {
 	if (TinselV2 && s.isLoading())
 		HoldItem(INV_NOICON);
 
-	syncSavedData(s, *g_srsd);
+	syncSavedData(s, *g_srsd, numInterp);
 	syncGlobInfo(s);		// Glitter globals
 	syncInvInfo(s);			// Inventory data
 
@@ -443,6 +452,10 @@ static void DoSync(Common::Serializer &s) {
 		sg = WhichItemHeld();
 	s.syncAsSint32LE(sg);
 	if (s.isLoading()) {
+		if (sg != -1 && !GetIsInvObject(sg))
+			// Not a valid inventory object, so return false
+			return false;
+
 		if (TinselV2)
 			g_thingHeld = sg;
 		else
@@ -459,7 +472,7 @@ static void DoSync(Common::Serializer &s) {
 	if (*g_SaveSceneSsCount != 0) {
 		SAVED_DATA *sdPtr = g_SaveSceneSsData;
 		for (int i = 0; i < *g_SaveSceneSsCount; ++i, ++sdPtr)
-			syncSavedData(s, *sdPtr);
+			syncSavedData(s, *sdPtr, numInterp);
 
 		// Flag that there is a saved scene to return to. Note that in this context 'saved scene'
 		// is a stored scene to return to from another scene, such as from the Summoning Book close-up
@@ -469,6 +482,8 @@ static void DoSync(Common::Serializer &s) {
 
 	if (!TinselV2)
 		syncAllActorsAlive(s);
+
+	return true;
 }
 
 /**
@@ -487,8 +502,23 @@ static bool DoRestore() {
 		delete f;	// Invalid header, or savegame too new -> skip it
 		return false;
 	}
+	
+	// Load in the data. For older savegame versions, we potentially need to load the data twice, once
+	// for pre 1.5 savegames, and if that fails, a second time for 1.5 savegames
+	int numInterpreters = hdr.numInterpreters;
+	int32 currentPos = f->pos();
+	for (int tryNumber = 0; tryNumber < ((hdr.ver >= 2) ? 1 : 2); ++tryNumber) {
+		// If it's the second loop iteration, try with the 1.5 savegame number of interpreter contexts
+		if (tryNumber == 1) {
+			f->seek(currentPos);
+			numInterpreters = 80;
+		}
 
-	DoSync(s);
+		// Load the savegame data
+		if (DoSync(s, numInterpreters))
+			// Data load was successful (or likely), so break out of loop
+			break;
+	}
 
 	uint32 id = f->readSint32LE();
 	if (id != (uint32)0xFEEDFACE)
@@ -575,7 +605,7 @@ static void DoSave() {
 		return;
 	}
 
-	DoSync(s);
+	DoSync(s, hdr.numInterpreters);
 
 	// Write out the special Id for Discworld savegames
 	f->writeUint32LE(0xFEEDFACE);
diff --git a/engines/tinsel/scene.h b/engines/tinsel/scene.h
index baaff27a3e..06e5c096d9 100644
--- a/engines/tinsel/scene.h
+++ b/engines/tinsel/scene.h
@@ -75,9 +75,9 @@ enum REEL {
 typedef enum { TRANS_DEF, TRANS_CUT, TRANS_FADE } TRANSITS;
 
 // amount to shift scene handles by
-#define	SCNHANDLE_SHIFT ((TinselV2 && !IsDemo) ? 25 : 23)
-#define	OFFSETMASK ((TinselV2 && !IsDemo) ? 0x01ffffffL : 0x007fffffL)
-#define HANDLEMASK ((TinselV2 && !IsDemo) ? 0xFE000000L : 0xFF800000L)
+#define	SCNHANDLE_SHIFT ((TinselV2 && !TinselV2Demo) ? 25 : 23)
+#define	OFFSETMASK ((TinselV2 && !TinselV2Demo) ? 0x01ffffffL : 0x007fffffL)
+#define HANDLEMASK ((TinselV2 && !TinselV2Demo) ? 0xFE000000L : 0xFF800000L)
 
 void DoHailScene(SCNHANDLE scene);
 
diff --git a/engines/tinsel/sound.cpp b/engines/tinsel/sound.cpp
index f575b03270..e052302cfd 100644
--- a/engines/tinsel/sound.cpp
+++ b/engines/tinsel/sound.cpp
@@ -75,7 +75,7 @@ SoundManager::~SoundManager() {
 // playSample for DiscWorld 1
 bool SoundManager::playSample(int id, Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {
 	// Floppy version has no sample file
-	if (_vm->getFeatures() & GF_FLOPPY)
+	if (!_vm->isCD())
 		return false;
 
 	// no sample driver?
@@ -182,7 +182,7 @@ bool SoundManager::playSample(int id, int sub, bool bLooped, int x, int y, int p
 		Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {
 
 	// Floppy version has no sample file
-	if (_vm->getFeatures() & GF_FLOPPY)
+	if (!_vm->isCD())
 		return false;
 
 	// no sample driver?
@@ -471,7 +471,7 @@ void SoundManager::setSFXVolumes(uint8 volume) {
  */
 void SoundManager::openSampleFiles() {
 	// Floppy and demo versions have no sample files, except for the Discworld 2 demo
-	if (_vm->getFeatures() & GF_FLOPPY || (IsDemo && !TinselV2))
+	if (!_vm->isCD() || TinselV0)
 		return;
 
 	TinselFile f;
diff --git a/engines/tinsel/tinlib.cpp b/engines/tinsel/tinlib.cpp
index dfa44c505a..058f8eb6fd 100644
--- a/engines/tinsel/tinlib.cpp
+++ b/engines/tinsel/tinlib.cpp
@@ -1625,10 +1625,6 @@ static void Play(CORO_PARAM, SCNHANDLE hFilm, int x, int y, bool bComplete, int
  * Play a midi file.
  */
 static void PlayMidi(CORO_PARAM, SCNHANDLE hMidi, int loop, bool complete) {
-	// FIXME: This is a workaround for the FIXME below
-	if (GetMidiVolume() == 0 || TinselV1PSX)
-		return;
-
 	CORO_BEGIN_CONTEXT;
 	CORO_END_CONTEXT(_ctx);
 
@@ -1637,18 +1633,13 @@ static void PlayMidi(CORO_PARAM, SCNHANDLE hMidi, int loop, bool complete) {
 
 	PlayMidiSequence(hMidi, loop == MIDI_LOOP);
 
-	// FIXME: The following check messes up the script arguments when
-	// entering the secret door in the bookshelf in the library,
-	// leading to a crash, when the music volume is set to 0 (MidiPlaying()
-	// always false then).
-	//
-	// Why exactly this happens is unclear. An analysis of the involved
-	// script(s) might reveal more.
-	//
-	// Note: This check&sleep was added in DW v2. It was most likely added
-	// to ensure that the MIDI song started playing before the next opcode
+	// This check&sleep was added in DW v2. It was most likely added to
+	// ensure that the MIDI song started playing before the next opcode
 	// is executed.
-	if (!MidiPlaying())
+	// In DW1, it messes up the script arguments when entering the secret
+	// door in the bookshelf in the library, leading to a crash, when the
+	// music volume is set to 0.
+	if (!MidiPlaying() && TinselV2)
 		CORO_SLEEP(1);
 
 	if (complete) {
@@ -3412,7 +3403,7 @@ static void TalkOrSay(CORO_PARAM, SPEECH_TYPE speechType, SCNHANDLE hText, int x
 			// Kick off the sample now (perhaps with a delay)
 			if (g_bNoPause)
 				g_bNoPause = false;
-			else if (!IsDemo)
+			else if (!TinselV2Demo)
 				CORO_SLEEP(SysVar(SV_SPEECHDELAY));
 
 			//SamplePlay(VOICE, hText, _ctx->sub, false, -1, -1, PRIORITY_TALK);
@@ -4244,7 +4235,7 @@ int CallLibraryRoutine(CORO_PARAM, int operand, int32 *pp, const INT_CONTEXT *pi
 	int libCode;
 	if (TinselV0) libCode = DW1DEMO_CODES[operand];
 	else if (!TinselV2) libCode = DW1_CODES[operand];
-	else if (_vm->getFeatures() & GF_DEMO) libCode = DW2DEMO_CODES[operand];
+	else if (TinselV2Demo) libCode = DW2DEMO_CODES[operand];
 	else libCode = DW2_CODES[operand];
 
 	debug(7, "CallLibraryRoutine op %d (escOn %d, myEscape %d)", operand, pic->escOn, pic->myEscape);
diff --git a/engines/tinsel/tinsel.h b/engines/tinsel/tinsel.h
index 59344c44f4..123249125e 100644
--- a/engines/tinsel/tinsel.h
+++ b/engines/tinsel/tinsel.h
@@ -53,7 +53,6 @@ class Config;
 class MidiDriver;
 class MidiMusicPlayer;
 class PCMMusicPlayer;
-class Scheduler;
 class SoundManager;
 
 typedef Common::List<Common::Rect> RectList;
@@ -64,21 +63,16 @@ enum TinselGameID {
 };
 
 enum TinselGameFeatures {
-	GF_DEMO = 1 << 0,
-	GF_CD = 1 << 1,
-	GF_FLOPPY = 1 << 2,
-	GF_SCNFILES = 1 << 3,
-	GF_ENHANCED_AUDIO_SUPPORT = 1 << 4,
-	GF_ALT_MIDI = 1 << 5,		// Alternate sequence in midi.dat file
+	GF_SCNFILES = 1 << 0,
+	GF_ENHANCED_AUDIO_SUPPORT = 1 << 1,
+	GF_ALT_MIDI = 1 << 2,		// Alternate sequence in midi.dat file
 
 	// The GF_USE_?FLAGS values specify how many country flags are displayed
 	// in the subtitles options dialog.
 	// None of these defined -> 1 language, in ENGLISH.TXT
-	GF_USE_3FLAGS = 1 << 6,	// French, German, Spanish
-	GF_USE_4FLAGS = 1 << 7,	// French, German, Spanish, Italian
-	GF_USE_5FLAGS = 1 << 8,	// All 5 flags
-
-	GF_BIG_ENDIAN = 1 << 9
+	GF_USE_3FLAGS = 1 << 3,	// French, German, Spanish
+	GF_USE_4FLAGS = 1 << 4,	// French, German, Spanish, Italian
+	GF_USE_5FLAGS = 1 << 5	// All 5 flags
 };
 
 /**
@@ -135,13 +129,12 @@ typedef bool (*KEYFPTR)(const Common::KeyState &);
 #define TinselV0 (TinselVersion == TINSEL_V0)
 #define TinselV1 (TinselVersion == TINSEL_V1)
 #define TinselV2 (TinselVersion == TINSEL_V2)
+#define TinselV2Demo (TinselVersion == TINSEL_V2 && _vm->getIsADGFDemo())
 #define TinselV1PSX (TinselVersion == TINSEL_V1 && _vm->getPlatform() == Common::kPlatformPSX)
 #define TinselV1Mac (TinselVersion == TINSEL_V1 && _vm->getPlatform() == Common::kPlatformMacintosh)
 
-#define IsDemo (_vm->getFeatures() & GF_DEMO)
-
-#define READ_16(v) ((_vm->getFeatures() & GF_BIG_ENDIAN) ? READ_BE_UINT16(v) : READ_LE_UINT16(v))
-#define READ_32(v) ((_vm->getFeatures() & GF_BIG_ENDIAN) ? READ_BE_UINT32(v) : READ_LE_UINT32(v))
+#define READ_16(v) (TinselV1Mac ? READ_BE_UINT16(v) : READ_LE_UINT16(v))
+#define READ_32(v) (TinselV1Mac ? READ_BE_UINT32(v) : READ_LE_UINT32(v))
 
 // Global reference to the TinselEngine object
 extern TinselEngine *_vm;
@@ -154,7 +147,6 @@ class TinselEngine : public Engine {
 	Common::Point _mousePos;
 	uint8 _dosPlayerDir;
 	Console *_console;
-	Scheduler *_scheduler;
 
 	static const char *const _sampleIndices[][3];
 	static const char *const _sampleFiles[][3];
@@ -188,6 +180,8 @@ public:
 	uint16 getVersion() const;
 	uint32 getFlags() const;
 	Common::Platform getPlatform() const;
+	bool getIsADGFDemo() const;
+	bool isCD() const;
 
 	const char *getSampleIndex(LANGUAGE lang);
 	const char *getSampleFile(LANGUAGE lang);