The two important things are:
1. Power down the S9 by holding the power button down until the screen goes black. Then remove the SD card.
2. Be sure to lock the card immediately.
Previously you said that you preferred to use Sleepyhead. As long as you back up your card as we discussed, you should be fine. Sleepyhead will import data from wherever you point it. Rescan will not. It insists on taking from the SD card.
It is important to make sure you have your compliance data but that is not in the detailed reports. By the way it's nice that your doctor wants to see detail reports. Mine has never asked to see anything except compliance. Money money!