I am running Ubuntu 18.04 but there is no disk writing tool like Brasero disk burner present.
brasero is a package in the "universe" repository:
walt@bat:~(0)$ apt policy brasero brasero: Installed: (none) Candidate: 3.12.1-1ubuntu3~16.04 Version table: 3.12.1-1ubuntu3~16.04 500 500 http://ca.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages 3.12.1-1ubuntu2 500 500 http://ca.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
so, a simple
sudo apt install brasero will install it.
Brasero is a simple application to burn, copy and erase CD and DVD media: audio, video or data. It features among other things:
- On-the-fly burning
- Multisession support
- On-the-fly conversion of music playlists in all formats supported by GStreamer
To install open software center and search for Brasero or open a terminal and type
sudo apt install brasero
Afterward, type "brasero" in the search bar and you will find it. It's there in my OS.