diff -r 6c22199ff33e -r ef4fb30176dd gmyth-stream/server/0.2/plugins/transcoders/mencoder_lib/mythtv.py
--- a/gmyth-stream/server/0.2/plugins/transcoders/mencoder_lib/mythtv.py	Thu May 17 22:16:15 2007 +0100
+++ b/gmyth-stream/server/0.2/plugins/transcoders/mencoder_lib/mythtv.py	Tue Jun 05 12:32:43 2007 +0100
@@ -46,12 +46,16 @@
 
 def _setup_gmythcat(self):
     gmyth_cat = utils.which("gmyth-cat")
-    return [ utils.which("gmyth-cat"),
-            "-h", self.args["gmyth-cat"]["backend"],
-            "-p", self.args["gmyth-cat"]["port"],
-            "-" + self.args["gmyth-cat"]["kind"],
-            self.args["gmyth-cat"]["cfile"]
-           ]
+    if self.args.has_key("gmyth-cat"):
+        return [ utils.which("gmyth-cat"),
+                 "-h", self.args["gmyth-cat"]["backend"],
+                 "-p", self.args["gmyth-cat"]["port"],
+                 "-" + self.args["gmyth-cat"]["kind"],
+                 self.args["gmyth-cat"]["cfile"]
+                 ]
+    else:
+        self.log.error("URI error")
+        return []
 # _setup_gmythcat
 
 def start_myth(self, outfd):