Good Afternoon......Hopefully I can shed some light on this subject which in all likelihood will spur additional "what if" scenarios. If so please feel free to post here and I'll reply as soon as I can.
This is completely unrelated to piracy. We are acutely aware of the importance of securing PHI and in order to comply with certain security guidelines we strengthened the encryption algorithm we use for the enc file in 9.1. As such, once you are on v9.1 you cannot restore an enc file from prior to 9.1 without the file being re-encrypted which must be done with a special in-house utility and hence the need for you to send in the file to CS, they will re-encrypt for 9.1 and return the file to you. The turnaround time for that will vary based on the size of the file and bandwidth. We really have no other options here...we cannot distribute the secret formula for users to do this themselves, it must remain in-house. Once you're on v9.1 it's business as usual, there is absolutely no difference in what you do then as you have in years past to backup and restore as all files created will use the new encryption algorithm.