Archiving files on Linux using Pioneer BDR-XD07B Blu-ray burner

I'm using Fedora v32. The only support I could find for Blu-ray burners on Linux is either xfburn or growisofs. I'd like to add files for backup and then burn it. When I tried using xfburn and selecting "Pioneer BDR-XD07B" under "Burning device", after adding the files to be saved, I get: > Failed to unmount 'Blank DS-R Disc'. Drive cannot be used for burning. Couldn't find an example of growisofs adding files to be burned then burning the disc. I assume I'll need to use mkisofs to make an ISO file with the data files in it then burning the Blu-ray disc with that ISO? I looked for Linux drivers for the Pioneer BDR-XD07B but found only Windows and MacOS drivers. Suggestions?