Hi! There was a problem with k3b (the KF5 version for Tumbleweed) burning ISO images: https://bugs.kde.org/show_bug.cgi?id=365089 This has been fixed 3 days ago: https://quickgit.kde.org/?p=k3b.git&a=commit&h=fc4c54f7294293847c545e84090f2c0f66ad210b Maybe someone could update the Packman package? Thanks. Kind Regards, Wolfgang