thoggen is a DVD backup program based on GStreamer/Gtk+. It encodes into ogg/theora video files, but additional formats (avi, matroska + mpeg4/xvid/mp2/mp3) are planned for the future. thoggen aims to provide a clean and easy to use interface.
scdbackup is a simplified CD/DVD backup program for Linux. It can back up large amounts of data on one or more media, with no special tools needed for reading the backup. It supports ISO9660 filesystems and afio archives.
RAB is a backup program used to make backups to removable media,
like DVD RAM, and to CD. RAB supports full and incremental backups. RAB provides a library which may be used to create customized backup applications for your special needs.