Can't burn CD/DVD

[Eric L. Chen]

Hi!
I cannot burn cd or dvd by nautilus-cd-burner and serpentine.
The cdrecord is work fine! Nautilus-cd-burner seems look some hal
perperties that not existed in blank disc.
Followed http://www.freebsd.org/gnome/docs/faq2.html#q15 but still can't
work.

The nautilus-cd-burner has some warning message as below:
~> nautilus-cd-burner 

** (nautilus-cd-burner:1257): WARNING **: No property
volume.disc.capacity on device with
id /org/freedesktop/Hal/devices/storage_model_MATSHITAUJ_840D_block


** (nautilus-cd-burner:1257): WARNING **: No property volume.size on
device with
id /org/freedesktop/Hal/devices/storage_model_MATSHITAUJ_840D_block


** (nautilus-cd-burner:1257): WARNING **: No property volume.label on
device with
id /org/freedesktop/Hal/devices/storage_model_MATSHITAUJ_840D_block


** (nautilus-cd-burner:1257): WARNING **: No property volume.is_mounted
on device with
id /org/freedesktop/Hal/devices/storage_model_MATSHITAUJ_840D_block


** (nautilus-cd-burner:1257): WARNING **: No property
volume.disc.is_appendable on device with
id /org/freedesktop/Hal/devices/storage_model_MATSHITAUJ_840D_block

/Eric