diff --git a/Configuration.h b/Configuration.h
index d75e921..caacee4 100644
--- a/Configuration.h
+++ b/Configuration.h
@@ -24,8 +24,8 @@ Licence: GPL
 #define CONFIGURATION_H
 
 #define NAME "RepRapFirmware"
-#define VERSION "0.78m-dc42"
-#define DATE "2014-08-24"
+#define VERSION "0.78n-dc42"
+#define DATE "2014-08-26"
 #define AUTHORS "reprappro, dc42, zpl"
 
 // Other firmware that we might switch to be compatible with.
diff --git a/GCodes.cpp b/GCodes.cpp
index e1d94f0..2a5c04c 100644
--- a/GCodes.cpp
+++ b/GCodes.cpp
@@ -1840,18 +1840,20 @@ bool GCodes::HandleMcode(GCodeBuffer* gb)
 
 	case 20:  // Deprecated...
 		{
-			bool encapsulate_list;
+			// To mimic the behaviour of the official RepRapPro firmware:
+			// If we are emulating RepRap then we print "GCode files:\n" at the start, otherwise we don't.
+			// If we are emulating Marlin and the code came via the serial/USB interface, then we don't put quotes around the names and we separate them with newline;
+			// otherwise we put quotes around them and separate them with comma.
 			if (platform->Emulating() == me || platform->Emulating() == reprapFirmware)
 			{
 				reply.copy("GCode files:\n");
-				encapsulate_list = false;
 			}
 			else
 			{
 				reply.Clear();
-				encapsulate_list = true;
 			}
 
+			bool encapsulate_list = (gb != serialGCode || platform->Emulating() != marlin);
 			FileInfo file_info;
 			if (platform->GetMassStorage()->FindFirst(platform->GetGCodeDir(), file_info))
 			{
@@ -1867,7 +1869,7 @@ bool GCodes::HandleMcode(GCodeBuffer* gb)
 					}
 				} while (platform->GetMassStorage()->FindNext(file_info));
 
-				// remove the last character
+				// remove the last separator
 				reply[reply.strlen() - 1] = 0;
 			}
 			else
diff --git a/Release/RepRapFirmware-078n-dc42.bin b/Release/RepRapFirmware-078n-dc42.bin
new file mode 100644
index 0000000..52f9a7b
Binary files /dev/null and b/Release/RepRapFirmware-078n-dc42.bin differ