diff --git a/gg.c b/gg.c
index ab2ecdf..0ad0fd3 100644
--- a/gg.c
+++ b/gg.c
@@ -88,12 +88,12 @@ int main(void)
 //    }
     debug = 2-debug;
 	
-    debug = mmc_read_part(0, (unsigned char *) &length, 4);
+    debug = mmc_read_part(1, (unsigned char *) &length, 4);
     debug = 1;
     if(length==0){
         debug = 2;
     }
-    debug = length & 0xff;
+    debug = (length>>24) & 0xff;
 
 	
 	timer_init_tiny26();
diff --git a/mmc.h b/mmc.h
index 0562d58..e86ded2 100644
--- a/mmc.h
+++ b/mmc.h
@@ -14,7 +14,7 @@ Copyright (C) 2004 Ulrich Radig
 
 //#define SPI_Mode			1		//1 = Hardware SPI | 0 = Software SPI
 #define SPI_Mode			0
-#define WAIT_HALF_CLOCK _delay_us(2)
+#define WAIT_HALF_CLOCK _delay_us(0.5)
 #define WAIT_HALF_CLOCK_SLOW _delay_us(20)
 
 #define MMC_Write			PORTA	//Port an der die MMC/SD-Karte angeschlossen ist also des SPI