diff --git a/Cart_Reader/MD.ino b/Cart_Reader/MD.ino
index f8f7f9d..6d5cfbb 100644
--- a/Cart_Reader/MD.ino
+++ b/Cart_Reader/MD.ino
@@ -77,7 +77,7 @@ static const word PROGMEM eepid [] = {
 };
 
 byte eepcount = (sizeof(eepid) / sizeof(eepid[0])) / 2;
-byte index;
+int index;
 word eepdata;
 
 // CD BACKUP RAM
diff --git a/Cart_Reader/NES.ino b/Cart_Reader/NES.ino
index 28ec613..61ef667 100644
--- a/Cart_Reader/NES.ino
+++ b/Cart_Reader/NES.ino
@@ -894,7 +894,9 @@ setmapper:
   for (int i = 0; i < mapcount; i++) {
     index = i * 7;
     mapselect = pgm_read_byte(mapsize + index);
+    Serial.print("[");
     Serial.print(mapselect);
+    Serial.print("]");
     if (i < mapcount - 1) {
       if ((i != 0) && ((i + 1) % 10 == 0))
         Serial.println(F(""));