diff --git a/media/validators.py b/media/validators.py
index d528ed1..151c90f 100644
--- a/media/validators.py
+++ b/media/validators.py
@@ -21,8 +21,8 @@ def isbn_validator(raw_isbn):
     if len(isbn_to_check) != 10 and len(isbn_to_check) != 13:
         raise ValidationError(_('Invalid ISBN: Wrong length'))
 
-    if not isbn.is_valid(isbn_to_check):
-        raise ValidationError(_('Invalid ISBN: Failed checksum'))
+    #if not isbn.is_valid(isbn_to_check):
+    #    raise ValidationError(_('Invalid ISBN: Failed checksum'))
 
     if isbn_to_check != isbn_to_check.upper():
         raise ValidationError(_('Invalid ISBN: Only upper case allowed'))