diff --git a/development/checkurls/knownInvalidURLS b/development/checkurls/knownInvalidURLS
index 63f17b56c4..80dc08cd30 100644
--- a/development/checkurls/knownInvalidURLS
+++ b/development/checkurls/knownInvalidURLS
@@ -5,3 +5,6 @@ http://www.test.test
 http://example.com/%20foo
 http://ftp.edpsciences.org/pub/aa/aa-package.zip
 http://www.istri.fr/spip/zip/CMCDDE.zip
+http://prst-per.aps.org/multimedia/PRSTPER/v4/i1/e010101/e010101_vid1a.mpg
+http://prst-per.aps.org/multimedia/PRSTPER/v4/i1/e010101/e010101_vid1b.mpg
+http://www.issn.org/en/node/344