Age Gate for Videos Plugin

I am looking for an age gate plugin.

Preferably one which will only hide the video contents until the correct age is entered.

I’ve tried MistViper AgeGate, it isn’t compatible with WP latest 3.1+

Does anyone have any suggestions? Or if you don’t know a plugin, does anyone know a video site which lets you put on an age lock?

Thank you in advance.

And for those of you who think that this is the time to show off how clever you are, by posting a stupid response about how people just lie – don’t bother. All videos need to be in accordance to the ESRB requirements, and require an age lock.