I can confirm that the same issue happens in brasero in Hardy Heron x86-64 but the cdrecord command launched by brasero seems to have the right speed parameter: cdrecord -v dev=/dev/scd0 gracetime=0 speed=1 driveropts=burnfree -multi fs=4m tsize=11080s -dao -data -nopad
as you see speed is set to 1 but the burning process is done at 4x There is no way to debug brasero as bug 273183 -- Ignores manually set burn speed https://bugs.launchpad.net/bugs/31768 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to brasero in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs