diff --git a/source/disc_io/io_sd_common.h b/source/disc_io/io_sd_common.h
index 09abffa..69545a0 100644
--- a/source/disc_io/io_sd_common.h
+++ b/source/disc_io/io_sd_common.h
@@ -35,6 +35,9 @@
 	
 	2006-07-28 - Chishm
 		* Changed voltage range that the SD card can use
+		
+	2006-11-14 - Chishm
+		* Reduced voltage range again. Hopefully fixes MicroSD cards.
 */
 
 #ifndef IO_SD_COMMON_H
@@ -63,9 +66,9 @@
 #define SD_APP_OP_COND 41
 
 /* OCR (Operating Conditions Register) send value */
-//#define SD_OCR_VALUE 0x00030000 /* 2.8V to 3.0V */
+#define SD_OCR_VALUE 0x00030000 /* 2.8V to 3.0V */
 //#define SD_OCR_VALUE 0x003F8000 /* 2.7V to 3.4V */
-#define SD_OCR_VALUE 0x00FC0000
+//#define SD_OCR_VALUE 0x00FC0000
 
 /* SD Data repsonses */
 #define SD_CARD_BUSY 0xff