i guess in that case - you have to continue to do as you always did - and do - backup good in 4 or 5 places if its that important - you have good reasons to keep it safe.
what i did now was using the 2 WD Black 2T each in my PC - i just copied both with the same info. and the most important folder about 100Gig size - i copy that folder only to 2 external drives and my laptop - giving me 5 places it should be if anything happens
if that in end proves not enough - i give up then - now the videos i wanted to keep - i uploaded them all to youtube again - i lost a ton of my previous years - but not a big deal - i can and will visit the places again and make new ones -
saving them on HD is the issue they take alot of space - right now - not much about 50 vids only - but as it grows -