diff --git a/support/saturn/saturn.cpp b/support/saturn/saturn.cpp
index 9c1e007..4864fec 100644
--- a/support/saturn/saturn.cpp
+++ b/support/saturn/saturn.cpp
@@ -89,8 +89,7 @@ void saturn_poll()
 static char buf[1024];
 static void saturn_mount_save(const char *filename)
 {
-	(void)filename;
-	/*user_io_set_index(SAVE_IO_INDEX);
+	user_io_set_index(SAVE_IO_INDEX);
 	user_io_set_download(1);
 	if (strlen(filename))
 	{
@@ -101,7 +100,7 @@ static void saturn_mount_save(const char *filename)
 	{
 		user_io_file_mount("");
 	}
-	user_io_set_download(0);*/
+	user_io_set_download(0);
 }
 
 static int saturn_load_rom(const char *basename, const char *name, int sub_index)
@@ -190,14 +189,14 @@ int saturn_send_data(uint8_t* buf, int len, uint8_t index) {
 }
 
 static char int_blank[] = {
-	0x42, 0x61, 0x63, 0x6B, 0x55, 0x70, 0x52, 0x61, 0x6D, 0x20, 0x46, 0x6F, 0x72, 0x6D, 0x61, 0x74,
-	0x42, 0x61, 0x63, 0x6B, 0x55, 0x70, 0x52, 0x61, 0x6D, 0x20, 0x46, 0x6F, 0x72, 0x6D, 0x61, 0x74,
-	0x42, 0x61, 0x63, 0x6B, 0x55, 0x70, 0x52, 0x61, 0x6D, 0x20, 0x46, 0x6F, 0x72, 0x6D, 0x61, 0x74,
-	0x42, 0x61, 0x63, 0x6B, 0x55, 0x70, 0x52, 0x61, 0x6D, 0x20, 0x46, 0x6F, 0x72, 0x6D, 0x61, 0x74,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x42, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6B, 0x00, 0x55, 0x00, 0x70, 0x00, 0x52, 0x00, 0x61, 
+	0x00, 0x6D, 0x00, 0x20, 0x00, 0x46, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6D, 0x00, 0x61, 0x00, 0x74,
+	0x00, 0x42, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6B, 0x00, 0x55, 0x00, 0x70, 0x00, 0x52, 0x00, 0x61,
+	0x00, 0x6D, 0x00, 0x20, 0x00, 0x46, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6D, 0x00, 0x61, 0x00, 0x74,
+	0x00, 0x42, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6B, 0x00, 0x55, 0x00, 0x70, 0x00, 0x52, 0x00, 0x61,
+	0x00, 0x6D, 0x00, 0x20, 0x00, 0x46, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6D, 0x00, 0x61, 0x00, 0x74,
+	0x00, 0x42, 0x00, 0x61, 0x00, 0x63, 0x00, 0x6B, 0x00, 0x55, 0x00, 0x70, 0x00, 0x52, 0x00, 0x61,
+	0x00, 0x6D, 0x00, 0x20, 0x00, 0x46, 0x00, 0x6F, 0x00, 0x72, 0x00, 0x6D, 0x00, 0x61, 0x00, 0x74,
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
diff --git a/support/saturn/saturn.h b/support/saturn/saturn.h
index d2f29a7..063c89c 100644
--- a/support/saturn/saturn.h
+++ b/support/saturn/saturn.h
@@ -96,6 +96,10 @@ private:
 extern satcdd_t satcdd;
 extern uint32_t frame_cnt;
 
+
+#define CD_DATA_IO_INDEX	8
+#define SAVE_IO_INDEX		4 // fake download to trigger save loading
+
 void saturn_poll();
 void saturn_set_image(int num, const char *filename);
 void saturn_reset();
diff --git a/support/saturn/saturncdd.cpp b/support/saturn/saturncdd.cpp
index 04b21bd..b9449a4 100644
--- a/support/saturn/saturncdd.cpp
+++ b/support/saturn/saturncdd.cpp
@@ -8,9 +8,6 @@
 #include "../../shmem.h"
 #include "../chd/mister_chd.h"
 
-#define CD_DATA_IO_INDEX 4
-#define CD_DATA_IO2_INDEX 8
-
 #define SHMEM_ADDR  0x31000000
 
 satcdd_t satcdd;
@@ -508,10 +505,10 @@ void satcdd_t::CommandExec() {
 		this->read_pend = false;
 
 #ifdef SATURN_DEBUG
-		//printf("\x1b[32mSaturn: ");
-		//printf("Command Pause");
+		printf("\x1b[32mSaturn: ");
+		printf("Command Pause");
 		//printf(", last FAD = %u", last_lba + 150);
-		//printf(" (%u)\n\x1b[0m", frame_cnt);
+		printf(" (%u)\n\x1b[0m", frame_cnt);
 #endif // SATURN_DEBUG
 		break;
 
@@ -890,9 +887,9 @@ void satcdd_t::Update() {
 			uint8_t header[4];
 
 #ifdef SATURN_DEBUG
-			printf("\x1b[32mSaturn: ");
-			printf("Update read data, track = %i, lba = %i, msf = %02X:%02X:%02X, mode = %u", this->track + 1, this->lba + 150, BCD(msf.m), BCD(msf.s), BCD(msf.f), this->toc.tracks[this->track].type);
-			printf("\n\x1b[0m");
+			//printf("\x1b[32mSaturn: ");
+			//printf("Update read data, track = %i, lba = %i, msf = %02X:%02X:%02X, mode = %u", this->track + 1, this->lba + 150, BCD(msf.m), BCD(msf.s), BCD(msf.f), this->toc.tracks[this->track].type);
+			//printf("\n\x1b[0m");
 #endif // SATURN_DEBUG
 
 			if (this->sectorSize == 2048 || (this->lba - this->toc.tracks[this->track].start) < 0) {
@@ -1116,18 +1113,20 @@ int satcdd_t::DataSectorSend(uint8_t* header, int speed)
 	else {
 		ReadData(data_ptr);
 	}
+	int boot = (data_ptr[12] == 0x00 && data_ptr[13] == 0x02 && data_ptr[14] == 0x00 && data_ptr[15] == 0x01);
 	shmem_unmap(shmem_ptr, 4096 * 4);
 
+
 	buf_num_write++;
 	buf_num_write &= 3;
 	
-	uint16_t mode = (speed == 2 ? 0x0101 : 0x0000) | (buf_num_read << 4) | (buf_num_read << 12);
+	uint16_t mode = (speed == 2 ? 0x0101 : 0x0000) | (boot ? 0x0808 : 0x0000) | (buf_num_read << 4) | (buf_num_read << 12);
 
 	buf_num_read++;
 	buf_num_read &= 3;
 
 	if (SendData)
-		return SendData((uint8_t*)&mode, 2, CD_DATA_IO2_INDEX);
+		return SendData((uint8_t*)&mode, 2, CD_DATA_IO_INDEX);
 
 	return 0;
 }
@@ -1146,7 +1145,7 @@ int satcdd_t::RingDataSend(uint8_t* header, int speed)
 	uint16_t mode = (speed == 2 ? 0x0101 : 0x0000) | 0x0404;
 
 	if (SendData)
-		return SendData((uint8_t*)&mode, 2, CD_DATA_IO2_INDEX);
+		return SendData((uint8_t*)&mode, 2, CD_DATA_IO_INDEX);
 
 	return 0;
 }
@@ -1173,7 +1172,7 @@ int satcdd_t::AudioSectorSend(int first)
 	buf_num_read &= 3;
 
 	if (SendData)
-		return SendData((uint8_t*)&mode, 2, CD_DATA_IO2_INDEX);
+		return SendData((uint8_t*)&mode, 2, CD_DATA_IO_INDEX);
 
 	return 0;
 }