diff --git a/MUNGA/SPOOLER.cpp b/MUNGA/SPOOLER.cpp
index 12143e8..0d90faf 100644
--- a/MUNGA/SPOOLER.cpp
+++ b/MUNGA/SPOOLER.cpp
@@ -302,8 +302,25 @@ void
 {
 	Check(this);
 
+	//
+	// Never armed means not one packet arrived all race.
+	//
+	// Recording captures the packets this station RECEIVES, and a race
+	// with no other machines in it sends and receives nothing at all -
+	// L4NetworkManager::ExclusiveBroadcast walks the remote hosts, and a
+	// solo race has none. So there is nothing to keep, and the reason is
+	// worth saying rather than leaving an empty folder to be puzzled over.
+	//
+	// The same gap is why a RACER's recording is not the whole race: its
+	// own pod is simulated locally and never arrives as a packet. A Live
+	// Cam races nothing, so every pod reaches it over the wire, which
+	// makes it the only station that hears the lot.
+	//
 	if (!armed || spool == NULL)
 	{
+		DEBUG_STREAM << "Record: nothing to write - no packets were received"
+			<< " this race. Recording keeps what arrives over the network,"
+			<< " so a single-player race has nothing to keep.\n" << std::flush;
 		return;
 	}
 	if (packetsRecorded == 0)
diff --git a/RP_L4/RPL4FE.cpp b/RP_L4/RPL4FE.cpp
index fcefbf6..1cccdb1 100644
--- a/RP_L4/RPL4FE.cpp
+++ b/RP_L4/RPL4FE.cpp
@@ -701,11 +701,21 @@ namespace
 			groups[n++] = GroupRole;
 		}
 		//
-		// Directly under the role, and offered for every kind of race.
-		// A recording is just this station's received packets, so a
-		// single-player run records as readily as a lobby one - and
-		// unlike the role, a camera with nothing to watch is not a
-		// hazard here, so there is nothing to gate it on.
+		// Directly under the role, because it is the same question asked
+		// twice - what am I here to do.
+		//
+		// Offered on every race even though only a networked one has
+		// anything to record: a recording is this station's RECEIVED
+		// packets, and a solo race neither sends nor receives any. Hiding
+		// the row on solo would make the setting appear and disappear
+		// depending on what else was picked, which reads as a bug; the
+		// log says plainly why a solo race wrote nothing.
+		//
+		// Worth knowing when reading a spool back: a racer's recording
+		// leaves out its OWN pod, which is simulated locally and never
+		// arrives over the wire. A Live Cam races nothing, so every pod
+		// reaches it as packets - it is the only station that hears the
+		// whole race.
 		//
 		groups[n++] = GroupRecord;
 		groups[n++] = GroupVehicle;