Uninstall CyberLink InstantBurn's packet writing software, and ensure clbstor no longer appears in your lower filters after rebooting.
James hates this filter. Uninstall whatever installed that.
If you can't figure out how to remove those filters, do this:
i) Create a backup of your registry
ii) Download imgburn. It's a free program:
http://www.imgburn.com/index.php?act=download
(it's also an excellent program imo)
iii) Go to Tools > Filter Driver Load Order. Select "clbstor." Click "Remove Selected Filter". Select "AFS2K". Click "Remove Selected Filter". Click "ok".
iv) Reboot
And if you still have problems you have a bad original disc that needs to be exchanged.