       Serial.println();
       break;
     case '6':
-      while(Serial.available() == 0)
+      Serial.println(F("Reading distance 10 times:"));
+      for (help=0;help<10;help++)
       {
         digitalWrite(13, LOW);
         delayMicroseconds(2);

      Serial.println("°C");
      break;
    case '8':
      for (help=0;help<100;help++)
        Serial.print(char(readDisk(Disk1,help)));
      Serial.println();
      break;
    case '9':
      for (help=20;help<80;help++)
        Serial.print(char(readDisk(Disk0,help)));
      Serial.println();
      break;
    case 'a':
      Serial.println("Will follow...");
      break;
    case 'b':
      mp3.write("\x7E\x04\x03\x01");     // Play file number 
      mp3.write(70);                     // 70
      mp3.write("\xEF");

        duration=pulseIn(12, HIGH);
        Serial.print(duration/29/2);
        Serial.println("cm");
        delay(250);
      }
      Serial.println();
      break;
