Missing videos?

Okay, so the videos were downloaded for two days, then the guy had to remove them because he videos tons of houses every month for inspections & needed the space. I tried to download them to my computer, to no avail. Bummer. :( My son informs me that in order to download videos from you-tube & save them to my computer I have to have semi-illegal software loaded on my computer. Since I am trying to teach 21st learners to be RESPONSIBLE DIGITAL CITIZENS, this does not seem like a good option to me. So...........I'll go back with my own camera & do a video. Sometime in the very near future!! It's so nice! Potfiller! Hotdog!