Well not to burst your bubble, but I can see a torrent that has the exact disc (French Saw III dir cut) full BD, and I can see other torrents that have the Dir Cuts for the first two films as well, full BD rips. So if nothing else, it would just be redundant. Preservation refers to something that's not available at all at retail, not something that is available but inconvenient due to region coding, etc. I'm certainly not saying you can't share them, I fully believe in filesharing, just that I don't think they qualify as "preservations".