diff --git a/extensions/RatingExtension/RatingExtension.cs b/extensions/RatingExtension/RatingExtension.cs
index 572e3b9..a51dd5c 100644
--- a/extensions/RatingExtension/RatingExtension.cs
+++ b/extensions/RatingExtension/RatingExtension.cs
@@ -1,4 +1,8 @@
-using System;
+// This extension writes a rating to the filename of rated videos when mpv.net shuts down.
+
+// The input.conf defaults contain key bindings for this extension to set ratings.
+
+using System;
 using System.ComponentModel.Composition;
 using System.Collections.Generic;
 using System.IO;
@@ -58,4 +62,4 @@ namespace RatingExtension // the assembly name must end with 'Extension'
                 Msg.Show("Rating Extension", "This extension writes a rating to the filename of rated videos when mpv.net shuts down.\n\nThe input.conf defaults contain key bindings for this extension to set ratings.");
         }
     }
-}
\ No newline at end of file
+}
diff --git a/extensions/ScriptingExtension/ScriptingExtension.cs b/extensions/ScriptingExtension/ScriptingExtension.cs
index 8cbd582..30849d2 100644
--- a/extensions/ScriptingExtension/ScriptingExtension.cs
+++ b/extensions/ScriptingExtension/ScriptingExtension.cs
@@ -1,8 +1,11 @@
-//'This extension implements the C# scripting feature of mpv.net which
+// This extension implements the C# scripting feature of mpv.net which
 // is based on CS-Script (https://www.cs-script.net).
 
-// Furthermore the extension is used to code and debug scripts
-// because writing script code without debugger is not an option :-)
+// Furthermore I use this extension to code and debug scripts
+// because writing script code without debugger is not much fun.
+
+// Once the code was developed and debugged, I move the code
+// from the extension to a standalone script.
 
 using System;
 using System.ComponentModel.Composition;
@@ -44,4 +47,4 @@ namespace ScriptingExtension // the file name of extensions must end with 'Exten
             }
         }
     }
-}
\ No newline at end of file
+}