I am trying to use this to display video clips from YouTube but some of them have had embedding disabled. When this is the case, the video doesn't load, and I don't see any error messages. I would like to be able to display a message to the user that they need to view it directly on YouTube.

If the video is embedded using iframe code then clicking the play button results in a message that says embedding has been disabled by request and provides a link to watch the video on YouTube.

iframe code which results in the message:
<iframe width="720" height="405" src="http://www.youtube.com/embed/3yv3wos5k_k" frameborder="0" allowfullscreen=""></iframe>