I’ve been buying physical media and want to save digital copies for SD card. I had no issues with my CD for music but DVDs don’t work.
I have an optical drive that I plug in and it works. VLC with libdvdcss installed through Discovery failed. I tried MakeMKV but it doesn’t detect the optical drive.
This is the first I’ve heard of flatseal I’ll definitely check it out and see
Flatpaks are often restricted on what resources they can access because of how they work. I am not sure of the exact option you will need; but my guess is under devices, you can allow USB devices, and specific folder paths and it may work.
There’s also “application permissions” in settings