Update: YouTube have changed the player to have a pop-up button where you change the video from 320p up to the highest resolution available for the video being played. This tip is no longer applicable.

On the YouTube site, you can change the size of the embedded video by clicking Customize 'gear' button to the right of the embed code of your video. The largest size video when the Sidebar is shown on a standard Sandvox site design is 480x385, in my experience.

If the video is of HQ (high quality) you can add an extra bit of code to the embed code to make the video replay in HQ automatically. To do this:

• Add &ap=%2526fmt%3D18 to the embed URL for videos of 480x385 


• The &rel=0 is the code that turns off related videos e.g

My Example of this is on this page:
[Add and Embed a YouTube or Vimeo Video]

YouTube Embed Code:

<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/plEmpHrsKCc&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/plEmpHrsKCc&ap=%2526fmt%3D18&hl=en&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

This does *not* work for a Sandvox YouTube page, only embedded video.