@TakeFive - Thanks for the advice.
I tried Clementine and everything is visible and plays on it.
As far as I can tell, all files are mp3's and formatted correctly.
I moved one of the folders to a band that 's already seen by Strawberry; did a rescan and reboot and still wasn't seen.
One of the artists was ripped via Windows Media Player and the other 2 by MediaMonkey.
The MediaMonkey files are named: "#-Artist-trackname.mp3". That's the only difference I could find.
When I open Strawberry I get the following errors:
Hope this helps.
Thanks,