diff --git a/gba/include/fat.h b/gba/include/fat.h
index 6c1e302..510a298 100644
--- a/gba/include/fat.h
+++ b/gba/include/fat.h
@@ -27,6 +27,12 @@
 
 	2006-07-11 - Chishm
 		* Original release
+		
+	2006-07-14
+		* fatInitialise renamed to fatInit
+		
+	2006-07-16 - Chishm
+		* Added fatInitDefault
 */
 
 
@@ -51,6 +57,11 @@ setAsDefaultDevice: if true, make this the default device driver for file operat
 */
 bool fatInit (u32 cacheSize, bool setAsDefaultDevice);
 
+/*
+Calls fatInit with setAsDefaultDevice = true and cacheSize optimised for the host system.
+*/
+bool fatInitDefault (void);
+
 /*
 Mount the device specified by partitionNumber
 PD_DEFAULT is not allowed, use _FAT_partition_setDefaultDevice
diff --git a/include/fat.h b/include/fat.h
index c3de1d1..3c308d5 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -27,6 +27,12 @@
 
 	2006-07-11 - Chishm
 		* Original release
+		
+	2006-07-14
+		* fatInitialise renamed to fatInit
+		
+	2006-07-16 - Chishm
+		* Added fatInitDefault
 */
 
 
@@ -66,6 +72,11 @@ setAsDefaultDevice: if true, make this the default device driver for file operat
 */
 bool fatInit (u32 cacheSize, bool setAsDefaultDevice);
 
+/*
+Calls fatInit with setAsDefaultDevice = true and cacheSize optimised for the host system.
+*/
+bool fatInitDefault (void);
+
 /*
 Mount the device specified by partitionNumber
 PD_DEFAULT is not allowed, use _FAT_partition_setDefaultDevice
diff --git a/nds/include/fat.h b/nds/include/fat.h
index d889b4e..fad4f63 100644
--- a/nds/include/fat.h
+++ b/nds/include/fat.h
@@ -27,6 +27,12 @@
 
 	2006-07-11 - Chishm
 		* Original release
+		
+	2006-07-14
+		* fatInitialise renamed to fatInit
+		
+	2006-07-16 - Chishm
+		* Added fatInitDefault
 */
 
 
@@ -56,6 +62,11 @@ setAsDefaultDevice: if true, make this the default device driver for file operat
 */
 bool fatInit (u32 cacheSize, bool setAsDefaultDevice);
 
+/*
+Calls fatInit with setAsDefaultDevice = true and cacheSize optimised for the host system.
+*/
+bool fatInitDefault (void);
+
 /*
 Mount the device specified by partitionNumber
 PD_DEFAULT is not allowed, use _FAT_partition_setDefaultDevice
diff --git a/source/libfat.c b/source/libfat.c
index 6390dfd..959a9cf 100644
--- a/source/libfat.c
+++ b/source/libfat.c
@@ -35,6 +35,10 @@
 #include "partition.h"
 #include "fatfile.h"
 
+#define GBA_DEFAULT_CACHE_PAGES 2
+#define NDS_DEFAULT_CACHE_PAGES 8
+
+
 const devoptab_t dotab_fat = {
 	"fat",
 	sizeof (FILE_STRUCT),
@@ -89,6 +93,14 @@ bool fatInit (u32 cacheSize, bool setAsDefaultDevice) {
 	return true;
 }
 
+bool fatInitDefault (void) {
+#ifdef NDS
+	return fatInit (NDS_DEFAULT_CACHE_PAGES, true);
+#else
+	return fatInit (GBA_DEFAULT_CACHE_PAGES, true);
+#endif
+}
+
 bool fatMountNormalInterface (PARTITION_INTERFACE partitionNumber, u32 cacheSize) {
 	return _FAT_partition_mount (partitionNumber, cacheSize);
 }