Blank CD-R shows only 12MB of free space

[FransSchreuder]

Binary package hint: nautilus

Since I installed ubuntu 9.10, the iso burn applications shows 12MB of free space on a blank CD-R disc. (Everything else works though, I can just start burning and it works) Does anyone know where I could look for the bug?
Since everything else is working as it should, this just seems to be a gui problem

I have tested it and it occurs on both i386 (desktop) and x64 (laptop) systems.

See the screenshot

ProblemType: Bug
Architecture: i386
Date: Fri Nov 6 14:31:51 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/nautilus
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: nautilus 1:2.28.1-0ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae
SourcePackage: nautilus
Uname: Linux 2.6.31-14-generic-pae i686

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you get a devkit-disks --dump log with the cd in the drive?

[FransSchreuder (fransschreuder1)]

here's the dump

[Martin Pitt (pitti)]

DK-disks does not export/check for free space on any drive. Brasero determines the ISO size itself and seems to get confused here.

Cf. brasero_medium_get_free_space().