diff --git a/BUGS b/BUGS
index 879080f..de3f383 100644
--- a/BUGS
+++ b/BUGS
@@ -28,3 +28,13 @@ happening and how to avoid it.
 Sometimes, a temporary file gets deleted while one or more task(s) still needs
 it. Ensuing failure is correctly handled and the failed files will be generated
 during the next batch.
+
+4. ascii-only fails for immediate copies
+----------------------------------------
+Example output:
+cp: cannot create regular file `\\/mnt\\/Musique-mp3\\/Punk\\/Tagada
+Jones\\/2003-L\'Envers du dA(c)cor/11--Tagada Jones-Star System.mp3': No such
+file or directory
+
+Moreover, failure is not detected, and files are marked as done.
+