http://web.archive.org/web/20111217094925/http://www.youtube.com/watch?v=4j6jWSB-kyk
videoplayback.mp4

http://web.archive.org/web/20110817031419/http://www.youtube.com/watch?v=DiLvP5iq_Ug
videoplayback.webm

http://web.archive.org/web/20111013050234/http://www.youtube.com/watch?v=qAb6uS5E8-I
videoplayback (1).webm

http://web.archive.org/web/20111226030923/http://www.youtube.com/watch?v=6SbViMiCFkA
videoplayback (2).webm

http://web.archive.org/web/20120713002312/http://www.youtube.com/watch?v=mDvnZiCOPqw
videoplayback (1).mp4