Did simulation and did not continue after sucess

before burning an ISO image I ran a simulation using brasero. it ssemed to go fine but then it ejected the cd and said it was open or full and could not continue.

Ran it again in comand line:

(brasero:6645): Gtk-CRITICAL **: gtk_tree_model_get_iter_first: assertion `GTK_IS_TREE_MODEL (tree_model)' failed

(brasero:6645): Gtk-WARNING **: Unable to retrieve the file info for `file:///home/kamehouse/Ubuntu%20One/Documents/brasero-session.log': Error stating file '/home/kamehouse/Ubuntu One/Documents/brasero-session.log': No such file or directory

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: brasero 3.2.0-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sun Mar 4 21:44:28 2012
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: brasero
UpgradeStatus: Upgraded to oneiric on 2012-01-20 (44 days ago)