У вашего броузера проблема в совместимости с HTML5
WATCH THE URA SIDE VIDEO FIRST!!
A tutorial on how to tie the end knot on the omote (outward facing when worn) side of the tsuka. I used the shoddy red ito because I figured it would be easier to see than all of the dark colors I had laying around.
Go to Tsukamaki.net for great information on tsukamaki! Thomas L. Buck has provided a great resource. ^_^