Hi, > I am not such a purist, so I really appreciate the comfort of a desktop like > KDE or LXDE in this case.
It's not so much about purism in my personal case, but rather about the unwillingness to repeatedly learn how to do the same things in frequently (*) changing ways. (*) Once every ten years is too much for my ageing brain. > So is there anything I can do to help? Not before somebody shows up and asks for tests or experiments. I don't see suspicious upstream commits at https://github.com/KDE/k3b/commits/master and multiple pages until version 18.08.1 which is in Debian 10. In Debian 11 the K3B version is 20.12.2. The Debian 11 changelog https://tracker.debian.org/media/packages/k/k3b/changelog-20.12.2-1 gives no hint that the Debian maintainers changed something related to burn speed or burning in general. The patches in https://sources.debian.org/src/k3b/20.12.2-1/debian/patches/ don't look suspicious either. So i am out of ideas about how to find the trigger for your problems in Debian 11. > PS: I am on vacation till December 14th. Stay safe. Best in a plague-free hut in a remote mountain valley ... Have a nice day :) Thomas