diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f8f1421..d62c2b2b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -111,6 +111,7 @@ add_library(lego1 SHARED
   LEGO1/mxdsaction.cpp
   LEGO1/mxdsactionlist.cpp
   LEGO1/mxdsanim.cpp
+  LEGO1/mxdsbuffer.cpp
   LEGO1/mxdschunk.cpp
   LEGO1/mxdsevent.cpp
   LEGO1/mxdsfile.cpp
@@ -149,6 +150,7 @@ add_library(lego1 SHARED
   LEGO1/mxparam.cpp
   LEGO1/mxpresenter.cpp
   LEGO1/mxpresenterlist.cpp
+  LEGO1/mxramstreamcontroller.cpp
   LEGO1/mxscheduler.cpp
   LEGO1/mxsemaphore.cpp
   LEGO1/mxsmkpresenter.cpp
diff --git a/LEGO1/mxdsbuffer.cpp b/LEGO1/mxdsbuffer.cpp
new file mode 100644
index 00000000..686627a4
--- /dev/null
+++ b/LEGO1/mxdsbuffer.cpp
@@ -0,0 +1,13 @@
+#include "mxdsbuffer.h"
+
+// OFFSET: LEGO1 0x100c6470
+MxDSBuffer::MxDSBuffer()
+{
+  // TODO
+}
+
+// OFFSET: LEGO1 0x100c6530
+MxDSBuffer::~MxDSBuffer()
+{
+  // TODO
+}
diff --git a/LEGO1/mxdsbuffer.h b/LEGO1/mxdsbuffer.h
new file mode 100644
index 00000000..cb962cea
--- /dev/null
+++ b/LEGO1/mxdsbuffer.h
@@ -0,0 +1,20 @@
+#ifndef MXDSBUFFER_H
+#define MXDSBUFFER_H
+
+#include "decomp.h"
+#include "mxcore.h"
+
+// VTABLE 0x100dcca0
+// SIZE 0x34
+class MxDSBuffer : public MxCore
+{
+public:
+  MxDSBuffer();
+  virtual ~MxDSBuffer() override;
+
+private:
+  undefined m_unk08[0x2C];
+
+};
+
+#endif // MXDSBUFFER_H