diff --git a/Lib/aifc.py b/Lib/aifc.py
index 22bff01..d13a3b1 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -593,7 +593,11 @@
 				id = _read_short(chunk)
 				pos = _read_long(chunk)
 				name = _read_string(chunk)
-				self._markers.append((id, pos, name))
+				if pos or name:
+					# some files appear to have
+					# dummy markers consisting of
+					# a position 0 and name ''
+					self._markers.append((id, pos, name))
 		except EOFError:
 			print 'Warning: MARK chunk contains only',
 			print len(self._markers),