diff --git a/readme.md b/readme.md
index 3774a37..b8e8ae8 100644
--- a/readme.md
+++ b/readme.md
@@ -29,3 +29,17 @@ To write an EDID, run (as root):
 
 **Note:** The `edidread` tool writes binary data to stdout which
 is potentially dangerous. Redirect the output into a file or pipe.
+
+For further usage information, run the comands with `--help`.
+
+Notes
+-----
+
+Validate the EDID binary blob with the `edid-decode` tool:
+
+    edid-decode -c < edid.bin
+
+Links
+-----
+
+* https://git.linuxtv.org/edid-decode.git/about/