Comment 3 for bug 1674164

"differently correct" is no less a lie than "alternative facts". Your recorder is broken, period. Complain to the manufacturer to fix their firmware or see if they already have an update. Printed DVDs use the correct permissions. UDF also goes on rewritable media, optical or flash or otherwise, and the correct permissions need to be retained or you end up with either files that are never executable or always executable, and no ability to write protect files.

That said, it might be a reasonable workaround to detect the somewhat silly situation of the root directory not being readable by anyone and then override the permissions, only under that condition. Or perhaps there is a unique device string in the UDF header that identifies this particular broken burner that can key on it. What does blkid -p /dev/sr0 have to say about this disc?