Hello, grynmoors!
Thanks for your answer!
I'd like to 'force' people to signup with real emails, cause my site isnt paid, and I want to make newsletter for my members, plus add some special bonuses for them. Otherwise,why should people become members and signup if they can see videos anyway?! What will be the difference between member and anonymous surfer?

At least it can be done - when someone signup to site,just to be informed on welcome page,that he have to verify his mail... Right now user dont even guess about he have to do this...