I have a better idea. Define piracy as profiting off of the creative work of another without compensation. Piracy for personal use is theft only in the amount it was offered for sale. For torrenting it could be argued you have stolen 1 copy plus your seed ratio. However, lots of content isn’t even available for legal purchase, only subscription for viewing. Owning a copy of this content is not piracy because it did not interfere with the sale of the item (since it’s not offered for sale). Therefore, an act of media preservation is theft by this definition, but the amount or value of that theft is $0, because it’s not currently offered for sale.
-Bandit Heeler