Evening all

I'm just listening to some music I want from a Youtube video and having tried to save it I realise it's not that straight-forward

I've just done a quick bit of research and I'm not sure I trust the sites Google is leading me to. Rather than spend hours researching this stuff, I thought I'd ask you good folks for the quick and easy answer!
Thanks for taking the time to reply (if you do, and if you don't, thanks for reading).
e2a: BTW, the question was (

), what's the best way of grabbing video etc off the net??