diff --git a/libisoburn/trunk/README b/libisoburn/trunk/README
index 917a6151..edee8457 100644
--- a/libisoburn/trunk/README
+++ b/libisoburn/trunk/README
@@ -196,6 +196,12 @@ Note: xorriso by default prefixes "stdio:" to addresses outside the /dev tree
 
                               Testing
 
+For automated and manual tests of xorriso's functionality see file
+  releng/README.
+
+
+              Result comparison with self produced ISO images
+
 We are quite sure that libisofs produces accurate representations of the disk
 files. This opinion is founded on a lot of test burns and checks by a little
 test program which compares files from the mounted image with the orignals