diff --git a/include/common.h b/include/common.h
index 2789f97..d576181 100644
--- a/include/common.h
+++ b/include/common.h
@@ -62,6 +62,10 @@ typedef u8 bool;
 #define false 0
 #define true 1
 
+#define OS_TV_TYPE_PAL 0
+#define OS_TV_TYPE_NTSC 1
+#define OS_TV_TYPE_MPAL 2
+
 #define MAX_BYTES_TO_READ 512
 #define ARRAY_LENGTH(x) ((sizeof(x)) / (sizeof(x[0])))
 
diff --git a/src/main.c b/src/main.c
index 053fcda..58a4abf 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,7 +1,6 @@
 #include "common.h"
 #include "libmus.h"
 
-
 INCLUDE_ASM(const s32, "main", func_80070C60);
 
 INCLUDE_ASM(const s32, "main", AddHeap);
@@ -44,7 +43,12 @@ INCLUDE_ASM(const s32, "main", obMain);
 
 INCLUDE_ASM(const s32, "main", func_80072398);
 
-INCLUDE_ASM(const s32, "main", func_80072710);
+/* 2B10 80072710 */
+void func_80072710(void) {
+    if ((u32)(osTvType - 1) >= OS_TV_TYPE_MPAL) {
+        while(1);
+    }
+}
 
 INCLUDE_ASM(const s32, "main", __set_vi_mode);
 
@@ -138,10 +142,6 @@ INCLUDE_ASM(const s32, "main", __calls_copy_controller_data);
 extern u8 __reset_compared_osTvType();                    /* extern */
 extern void* D_800C4BB8;
 
-#define OS_TV_TYPE_PAL 0
-#define OS_TV_TYPE_NTSC 1
-#define OS_TV_TYPE_MPAL 2
-
 /* 347C 8007307C */
 void __calls_osViSwapBuffer_8007307C(void** buffers) 
 {