I don't think that's necessary. It's actually not that difficult to find legal material. For example, if you Google Libera, you get a link to their official website:

http://www.libera.org.uk/

Looking through the official website, you see a link to their official youtube channel:

http://www.youtube.com/OfficialLibera

From there you can easily obtain links to all kinds of legal Libera videos. It just takes a few extra minutes to find a legal version of many of the videos out there.