I have came across it before, although I don't actively visit it and acquire it, as I don't care to as I don't need to jerk off to that, nor care to, and despite encryption I would rather prefer not to risk it, as legally they could make a case with certain other evidence that is fairly strong.
Only way I'd really say that it's safe is if you paid them money and got the CD's and you viewed it online while not having a pedo-personality online or elsewhere.