For whatever it's worth, I have used CDBurnerXP <in Windows> for years and love it. It replaced Roxio with a few shortcomings but it is solid and reliable. I took it to Windows 7 with me a couple of months ago and am still happy.

I did not even know that it existed in Linux. I have not burned to many discs in Ubuntu, but would be interested to find a clean straightforward program for doing that important task.

Speed is unimportant but accuracy and reliability are.