Brasero problem

I've recently tried to create an audio CD with Brasero on the 18.04.02 armhf distro, and failed.
Problem is that Brasero doesn't 'see' the CD (device?), but I can see the device with blank CD on the desktop. It doen't matter whether I start Brasero from the menu, manually as root, or select the Desktop item for blank CD and try to run Brasero from there to create the CD.
I've checked the device from a Mint Installation dating back several years on a 'conventional PC'- and there brasero notices the loaded CD and creates the desired audio CD.
Running cd-info seems to indicate a 'normal' installation seeing the device and blank CD.
I note other posts with Brasero problems writing - but this isn't one of those as I never get to be able to write to the device.
Any suggestions?
Derek