I'm sure if you desire, one of us could take you through step by step the process of importing music to your 'computer', and then copying it to a suitable memory stick in a format that the ND can read and thus play.
preferring old-fashioned engineering. Just a personal thing
I can see where you are coming from Kev, for me with music nothing beats getting a 'hard copy' in your sticky mitt, be it a CD or vinyl LP....(I have over 1000 cds in my collection!)
It took me a bit to get my head around it too.....and rather than now carry a case full of Cds in the car I have a device smaller than a mobile phone that has about half my music collection on!
And on our pothole riddled roads there is no CD to 'Jump' if you hit one!
So I see the advantages.....
I only really started using the i-pod with the ND as the previous NC's didn't support the charging without buying an additional accessory to make it work.
It'll become second nature if you want it to!