[Digital Jedi]

Originally Posted by Yellow Slider

sorry for not understanding you, by "validation" you mean

Validation This is an optional regular expression that can be used to test if the destination page supports external embedding. Note that this option will only work if the Extract Destination Data setting is enabled (and working).

value="http://www\.youtube\.com/v/([\w\-]*)?&

I need to erase it? how do I turn it off?

edit, just erased the validation part and it's working..
I wonder what's the difference..

You can do that, but all you really needed to do was uncheck the box.

Validation checks to make sure that videos don't have external embedding disabled before bothering to embed them. Hence the mouseover that says "External Embedding Not Available". If the definition can't find a match to that RegEx, it skips embedding and puts a link instead. Since YouTube changed the formatting of their page, the current validation RegEx will never find what it's looking for.