Engrave on M-Disc

I want to use 100GB M-Disc for Backup. How can one determine whether the M-Disc Writing was engraved properly and successfully on the non-volatile substance? I plan to use Brasero for writing. What does one have to do, burn with brasero and everything is figured out automatically when you insert an M-Disc? I have just got a Pioneer BDR-XS07S Blu-Ray Burner. I am using Ubuntu 20.04 LTS.