I know that as encrypting changes over time, so must the decrypting which is why we get software updates.  
Why is there a need for a lifetime option on a converter program?  (Other than software improvements.)  Once you have copied your disc to a local hard drive, shouldn't the converter program work regardless of when you choose to convert?
Do any of these programs automatically stop working after 1 year, assuming someone paid for the 1 year subscription?  Or, do you just stop getting software updates?
I paid for a lifetime version of DVD Copy many years ago when "lifetime" was the only purchase option.  These subscription options seem odd to me.
Thank you.