diff --git a/src/core/Directory.cpp b/src/core/Directory.cpp
index 27539824..cc4d65d8 100644
--- a/src/core/Directory.cpp
+++ b/src/core/Directory.cpp
@@ -41,9 +41,23 @@ void
 CDirectory::AddItem(const DirectoryInfo &dirinfo)
 {
 	assert(numEntries < maxEntries);
+#ifdef FIX_BUGS
+	// don't add if already exists
+	uint32 offset, size;
+	if(FindItem(dirinfo.name, offset, size))
+		return;
+#endif
 	entries[numEntries++] = dirinfo;
 }
 
+void
+CDirectory::AddItem(const DirectoryInfo &dirinfo, int32 imgId)
+{
+	DirectoryInfo di = dirinfo;
+	di.offset |= imgId<<24;
+	AddItem(di);
+}
+
 bool
 CDirectory::FindItem(const char *name, uint32 &offset, uint32 &size)
 {
diff --git a/src/core/Directory.h b/src/core/Directory.h
index 06e6bba4..0fef080f 100644
--- a/src/core/Directory.h
+++ b/src/core/Directory.h
@@ -18,5 +18,6 @@ public:
 	void ReadDirFile(const char *filename);
 	bool WriteDirFile(const char *filename);
 	void AddItem(const DirectoryInfo &dirinfo);
+	void AddItem(const DirectoryInfo &dirinfo, int32 imgId);
 	bool FindItem(const char *name, uint32 &offset, uint32 &size);
 };
diff --git a/src/core/Streaming.cpp b/src/core/Streaming.cpp
index 15fe60e2..8124d11c 100644
--- a/src/core/Streaming.cpp
+++ b/src/core/Streaming.cpp
@@ -369,8 +369,12 @@ CStreaming::LoadCdDirectory(const char *dirname, int n)
 					lastID = modelId;
 				}
 			}else{
-				// BUG: doesn't remember which cdimage this was in
+#ifdef FIX_BUGS
+				// remember which cdimage this came from
+				ms_pExtraObjectsDir->AddItem(direntry, n);
+#else
 				ms_pExtraObjectsDir->AddItem(direntry);
+#endif
 				lastID = -1;
 			}
 		}else if(!CGeneral::faststrcmp(dot+1, "TXD") || !CGeneral::faststrcmp(dot+1, "txd")){