Master branch:
AppImage for KDE k3b
K3b is a full-featured, easy to use CD and DVD burner, copier, ripper and more.
https://www.kde.org/applications/multimedia/k3b/
S3 Download: master: https://s3-eu-central-1.amazonaws.com/ds9-apps/index.html#!/k3b-master-appimage%2F