Can't speak for the PADI cards as I've never had to replace one. However, I never carry my original Los Angeles County c-card from the 60s... only a laminated color scan of it. The original is safely stored in my desk drawer. I also have scans of my c-cards on my website in the event I am traveling and lose the copy. That way I can log on and show a dive operator the scanned images if they have Internet available.