diff --git a/TODO.org b/TODO.org
new file mode 100644
index 0000000..225cb0a
--- /dev/null
+++ b/TODO.org
@@ -0,0 +1,3 @@
+* restoring an xml file that specifies 0 data blocks fails in an unexpected way.
+
+  Need to check the case where blocks past the end are specified in the ranges.