My biggest concern with Optical Disks is obsolescence and convenience. I bought some DVD media to do some backups but so far I have only backed up a portion of my photos. Right now my files are being stored on my MacBook's internal SSD, Backblaze, Google Drive, and a Time Machine backup on an SD card that stays in the SD slot. I do full backups to external hard drives every so often. I'm too lazy for any backup method that requires an involved process like optical media.
And I also find myself asking if it's even worth it. I don't think my files are that valuable, to be honest. I would be sad to lose them, but it might also be freeing in a minimalist sort of way.
