Backing up from external hard drive

HI

I use an external drive for my Rekordbox so I can easily move it from one computer to another.

But how do I back this drive up in case of failure?

Ive seen posts where people advise doing a clone but can I not simply just copy the contents of the external hard drive to a folder somewhere on my PC and then if I need to just copy that contents back onto another drive in the future?