I watch things fairly often, and so far, I haven't lost anything that was oop before I could make a copy (which is why I go through them, even if it's just background noise while I do other things). That's the flow chart; pick the next one, check to see if it's still available, if it isn't either rip it or download it, then watch to verify the physical.

But, thank you very much for looking out :) That's a genuinely cool thing to do