This is really suitable for broadcasters such as the one I work for, as even professional digital tape formats are prone to dropout, ageing after 5-10 years even when stored properly, etc. Currnetly for us, 1inch tape is archived to digibeta, D3 will go to Digi or Digi’s replacement, as will digibeta to ???. The new backup medium and possibly playout medium will be optical. When IT systems get much faster, with multiple redundancy, playout for a disitributed network live between broadcasters may be a new way to do things.