if you use a sniffer to get url, cant they detect you doing this?

[reckone1999]

hi, i'm part of a club, and this club has free streaming videos to watch, and i've wanted to download them, to watch them in my ipod. i've tried recording my screen with Debut, and it wouldnt work, i've tried viewing the source code, and it's hidden behind java.

i think the only way to go about this is sniffing out the url, but if they are serious about not wanting the videos to be downloaded, couldn't they have sniffer detection?

because i wanted to know if there's a fool proof way of finding the url undetected.

thanks in advance