diff --git a/morituri/program/cdrdao.py b/morituri/program/cdrdao.py
index 15f90bf..669f0d0 100644
--- a/morituri/program/cdrdao.py
+++ b/morituri/program/cdrdao.py
@@ -290,7 +290,7 @@ class DiscInfoTask(CDRDAOTask):
         @param device:  the device to rip from
         @type  device:  str
         """
-        self.debug('creating DiscInfoTask')
+        self.debug('creating DiscInfoTask for device %r', device)
         CDRDAOTask.__init__(self)
 
         self.options = ['disk-info', ]
@@ -342,6 +342,8 @@ class ReadSessionTask(CDRDAOTask):
         @param device:  the device to rip from
         @type  device:  str
         """
+        self.debug('Creating ReadSessionTask for session %d on device %r',
+            session, device)
         CDRDAOTask.__init__(self)
         self.parser = OutputParser(self)
         (fd, self._tocfilepath) = tempfile.mkstemp(