2.2.1 back up and restore

I'm having to back up my RB and reinstall my OS (file>library>backup). Now i've noticed in 2.2.1 it saves a zip file now, it used to only save a .edb file

Do I need to save anything else?

looking at the old guide:

http://forums.pioneerdj.com/entries/20658308-Migrating-Your-Rekordbox-Database

you need to Copy everything EXCEPT The license file to a temporary storage medium in order to transfer it over to the other location. from your: Users\'yourusername'\AppData\Roaming\Pioneer\rekordbox

now i have done a back up and opened the zip file and it seems to have copied everything i need, can anyone confirm if only the zip file is needed for a restore back to the way it was?

sweating over this as this is a new way to restore