diff --git a/tools/rsltest/rsl.h b/tools/rsltest/rsl.h
index f4d2590..8107799 100644
--- a/tools/rsltest/rsl.h
+++ b/tools/rsltest/rsl.h
@@ -1,5 +1,11 @@
+enum {
+	TEX_IDENT  = 0x00746578,
+	MDL_IDENT  = 0x006D646C,
+	WRLD_IDENT = 0x57524C44
+};
+
 struct RslStream {
-	uint32 ident;
+	uint32   ident;
 	bool32   isMulti;
 	uint32   fileSize;
 	uint32   dataSize;
@@ -263,10 +269,104 @@ struct RslPS2InstanceData {
 	float32  bound[4];      // ?
 	float32  uvScale[2];
 	int32    unk1;
-	uint8   *dmaPacket;
+	uint32   dmaPacket;
 	uint16   numTriangles;
 	int16    matID;
-	void    *unk2;
-	void    *unk3;
-	void    *unk4;
+	int16    min[3];          // bounding box
+	int16    max[3];
 };
+
+struct RslStreamHeader {
+	uint32   ident;
+	uint32   unk;
+	uint32   fileEnd;      //
+	uint32   dataEnd;      // relative to beginning of header
+	uint32   reloc;	       //
+	uint32   relocSize;
+	uint32   root;        // absolute
+	uint16   zero;
+	uint16   numAtomics;
+};
+
+struct RslWorldGeometry {
+	uint16 numMeshes;
+	uint16 size;
+	// array of numMeshes RslWorldMesh
+	// dma data
+};
+
+struct RslWorldMesh {
+	uint16 texID;           // index into resource table
+	uint16 dmaSize;
+	uint16 uvScale[2];	// half precision float
+	uint16 unk1;
+	int16  min[3];          // bounding box
+	int16  max[3];
+};
+
+struct Resource {
+	union {
+		RslRaster        *raster;
+		RslWorldGeometry *geometry;
+		uint8            *raw;
+	};
+	uint32 *dma;
+};
+
+struct OverlayResource {
+	int32 id;
+	union {
+		RslRaster        *raster;
+		RslWorldGeometry *geometry;
+		uint8            *raw;
+	};
+};
+
+struct Placement {
+	uint16 id;
+	uint16 resId;
+	int16 bound[4];
+	int32 pad;
+	float matrix[16];
+};
+
+struct Sector {
+	OverlayResource *resources;
+	uint16           numResources;
+	uint16           unk1;
+	Placement       *sectionA;
+	Placement       *sectionB;
+	Placement       *sectionC;
+	Placement       *sectionD;
+	Placement       *sectionE;
+	Placement       *sectionF;
+	Placement       *sectionG;
+	Placement       *sectionEnd;
+	uint16           unk2;
+	uint16           unk3;
+	uint32           unk4;
+};
+
+struct SectorEntry {
+	RslStreamHeader *sector;
+	uint32           num;
+};
+
+struct World {
+	Resource    *resources;
+	SectorEntry  sectors[47];
+	uint32       numResources;
+	uint8        pad[0x180];
+
+	uint32 numX;
+	void *tabX;	// size 0x4
+
+	uint32 numY;
+	void *tabY;	// size 0x30
+
+	uint32 numZ;
+	void *tabZ;	// size 0x6
+
+	uint32           numTextures;
+	RslStreamHeader *textures; // stream headers
+};
\ No newline at end of file
diff --git a/tools/rsltest/rsltest.cpp b/tools/rsltest/rsltest.cpp
index 56983d2..8a9472d 100644
--- a/tools/rsltest/rsltest.cpp
+++ b/tools/rsltest/rsltest.cpp
@@ -99,7 +99,7 @@ main(int argc, char *argv[])
 	assert(sizeof(void*) == 4);
 
 	if(argc < 2){
-		printf("usage: %s [-u] in.dff\n", argv[0]);
+		printf("usage: %s in\n", argv[0]);
 		return 0;
 	}
 
@@ -112,8 +112,71 @@ main(int argc, char *argv[])
 	stream.close();
 	rslstr->relocate();
 
+	int largefile = rslstr->dataSize > 0x100000;
+
+	World *world;
 	RslClump *clump;
-	if(rslstr->numAtomics){
+	Sector *sector;
+	if(rslstr->ident = WRLD_IDENT && largefile){	// hack
+		world = (World*)rslstr->data;
+
+		int len = strlen(argv[1])+1;
+		char filename[1024];
+		strncpy(filename, argv[1], len);
+		filename[len-3] = 'i';
+		filename[len-2] = 'm';
+		filename[len-1] = 'g';
+		filename[len] = '\0';
+		assert(stream.open(filename, "rb"));
+		filename[len-4] = '\\';
+		filename[len-3] = '\0';
+
+		char name[1024];
+		uint8 *data;
+		StreamFile outf;
+		RslStreamHeader *h;
+		int i = 0;
+		for(h = world->sectors->sector; h->ident == WRLD_IDENT; h++){
+			sprintf(name, "world%04d.wrld", i++);
+			strcat(filename, name);
+			assert(outf.open(filename, "wb"));
+			data = new uint8[h->fileEnd];
+			memcpy(data, h, 0x20);
+			stream.seek(h->root, 0);
+			stream.read(data+0x20, h->fileEnd-0x20);
+			outf.write(data, h->fileEnd);
+			outf.close();
+			filename[len-3] = '\0';
+		}
+		// radar textures
+		h = world->textures;
+		for(i = 0; i < world->numTextures; i++){
+			sprintf(name, "txd%04d.chk", i);
+			strcat(filename, name);
+			assert(outf.open(filename, "wb"));
+			data = new uint8[h->fileEnd];
+			memcpy(data, h, 0x20);
+			stream.seek(h->root, 0);
+			stream.read(data+0x20, h->fileEnd-0x20);
+			outf.write(data, h->fileEnd);
+			outf.close();
+			filename[len-3] = '\0';
+			h++;
+		}
+		stream.close();
+	}else if(rslstr->ident = WRLD_IDENT){	// sector
+		sector = (Sector*)rslstr->data;
+		printf("resources\n");
+		for(uint32 i = 0; i < sector->numResources; i++){
+			OverlayResource *r = &sector->resources[i];
+			printf(" %d %p\n", r->id, r->raw);
+		}
+		printf("placement\n");
+		Placement *p;
+		for(p = sector->sectionA; p < sector->sectionEnd; p++){
+			printf(" %d, %d, %f %f %f\n", p->id &0x7FFF, p->resId, p->matrix[12], p->matrix[13], p->matrix[14]);
+		}
+	}else if(rslstr->ident = MDL_IDENT){
 		uint8 *p = *rslstr->hashTab;
 		p -= 0x24;
 		RslAtomic *a = (RslAtomic*)p;
diff --git a/tools/rsltest/rsltest.vcxproj b/tools/rsltest/rsltest.vcxproj
index 491654c..a001194 100644
--- a/tools/rsltest/rsltest.vcxproj
+++ b/tools/rsltest/rsltest.vcxproj
@@ -51,6 +51,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>