diff --git a/src/tivomirror/tivomirror b/src/tivomirror/tivomirror
index c13a173..930f997 100755
--- a/src/tivomirror/tivomirror
+++ b/src/tivomirror/tivomirror
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 
-# $Schlepperbande: src/tivomirror/tivomirror,v 1.31 2010/08/06 08:41:55 stb Exp $
+# $Schlepperbande: src/tivomirror/tivomirror,v 1.32 2010/08/07 09:04:16 stb Exp $
 #
 # Stefans Script, um die Sendungen vom Tivo runterzuladen und in MPEG4
 # zu transkodieren.
@@ -11,12 +11,13 @@ import anydbm
 import cookielib
 import datetime
 import os
+import re
+import signal
 import shutil
 import subprocess
 import sys
 import urllib2
 import xml.dom.minidom
-import re
 
 host = "tivo.lassitu.de"
 mak = "7194378159"
@@ -65,6 +66,12 @@ tmp = "/tmp"
 tmpmp2 = "/home/stb/tmp.mpg"
 tmpmp4 = "/home/stb/tmp.mp4"
 
+class TivoException(Exception):
+	def __init__(self, value):
+		self.value = value
+	def __str__(self):
+		return repr(self.value)
+
 def gettoc():
 	url = "https://" + host + "/TiVoConnect?Command=QueryContainer&Container=%2FNowPlaying&Recurse=Yes"
 	pwmgr.add_password(None, url, "tivo", mak)
@@ -136,18 +143,30 @@ def transcode(file, src, passno, ar):
 	print "    %s" % " ".join(transcode_opts)
 	subprocess.check_call(transcode_opts)
 
+
 def checkProcessError(curl, decode):
 	(spid, sse) = os.wait()
-	if (sse >> 8) == 0:
+	if not os.WIFSIGNALED(sse) \
+			and os.WIFEXITED(sse) and os.WEXITSTATUS(sse) == 0:
 		return False
 	if spid == curl.pid:
-		print "error downloading file: %d" % (sse >> 8)
+		proc = "curl"
 	elif spid == decode.pid:
-		print "error decoding file: %d" % (sse >> 8)
+		proc = "tivodecode"
+	if os.WIFSIGNALED(sse):
+		cause = "exited with signal %d" % os.WTERMSIG(sse)
 	else:
-		print "another process(?!) finished with an error"
+		cause = "exited with code %d" % os.WEXITSTATUS(sse)
+	proc = "another"
+	print "--- %s %s" % (proc, cause)
 	return True
-	
+
+
+def quit_process(pid):	
+	try:
+		os.kill(p_curl.pid, signal.SIGQUIT)
+	except OSError:
+		pass
 
 def download(file, url, mak, target):
 	print "--- dowloading \"%s\"" % (url)
@@ -159,14 +178,14 @@ def download(file, url, mak, target):
 	p_decode = subprocess.Popen(["tivodecode", "--mak", mak, \
 		"--out", target, "-"], stdin=p_curl.stdout)
 	if checkProcessError(p_curl, p_decode) or checkProcessError(p_curl, p_decode):
+		quit_process(p_curl.pid)
+		quit_process(p_decode.pid.pid)
 		os.remove(target)
-		os.kill(p_curl.pid, signal.SIGQUIT)
-		os.kill(p_decode.pid, signal.SIGQUIT)
-		raise Exception
+		raise TivoException("error downloading/decoding file")
 	if os.path.getsize(target) < 1024:
 		print "error transcoding file: too small"
 		os.remove(target)
-		raise Exception
+		raise TivoException("downloaded file is too small")
 
 def download_decode(file, url, mak, ar):
 	#target = tmpmp2
@@ -251,7 +270,7 @@ for i in items:
 			downloaddb.sync()
 		# stop after the fist successful download since the tivo hangs easily
 		break
-	except Exception, e:
+	except TivoException, e:
 		print "Error processing \"%s\": %s" % (name, e)
 print "*** Completed"