About a year ago I blogged about how the URL created for sharing of a YouTube video would not work in the Insert Video dialog in Windows Live Writer. Well it turns out that between now and then Google has changed things again, hence this blog post.
If you want to insert a YouTube video via the URL you have to use the long version of the URL and not the short version which is the default. Once you have found the video you want to embed in your blog post on the YouTube site click on the Share button. 
Next check the Long Link button.
This will change the link from something beginning with “http://youtu.be” to beginning with “http://www.youtube.com/watch?v=”. Copy that longer URL and then paste it into field on the From Web tab in the Insert Video dialog.
A quicker way is to just paste in the link without opening the Insert Video dialog box.
Comment by Jimmy Bergmark (@jtbworld) — February 26, 2012 @ 11:00 AM