If you want to try the GnomeBaker disc writer as an alternative to Brasero, or already had it only to find it uninstalled when you upgraded Ubuntu to 12.10, there is no version for Quantal Quetzal, but you can nonetheless get it to install. Unfortunately, it isn’t as easy as just getting Synaptic Package Manager or Ubuntu Software Center to install it, as it won’t be found in the official repositories.
First, you need to add the PPA, which you can do by running the following command in the terminal:
sudo add-apt-repository ppa:gnomebaker/stable
Now you need to edit that source list:
sudo gedit /etc/apt/sources.list.d/gnomebaker.list
… and replace both instances of quantal with oneiric, then save/exit the file.
Next, run the following to update your software sources:
sudo apt-get update
… and then install GnomeBaker:
sudo apt-get install gnomebaker
You’ll now have GnomeBaker back on your system, or have a great alternative to Brasero if you’ve never used it before!