I have Ubuntu 14.04 running in dual-boot with Linux Mint 17 (both 64bit) on a brand new Dell Inspiron N4050 i3 and I'm having a serious burning issue. Everytime I try to burn something I end up with a DVD/CD that doesn't work - no matter what tool I use (Brasero, xfburn...). This happens on both distros.
Whenever I insert a CD/DVD, I get this error:
"UNABLE TO MOUNT BLANK DVD-R DISC. Location is already mounted"
What is wrong here?