I am in need of backuping quite a volume of data, so DVD's would feel like old 
time floppy backup. I was thinking of turning to blu-ray (M-Disc as they 
advertise long life).

Does anyone know if TDE's k3b can write on Blu-ray, or would I have to install 
KDE's (or rather some Gnome stuff?). Debian Buster here.

Thierry