I hope you can help me here. I have just come to play my first DVD in SliTaz, and its not working for me. When I try to mount it from openbox I get

'error org.freedesktop.Hal.Device.Volume.UnknownFailure'
'Directory doesnt exist!'

I have tried manually mounting, 'mount /dev/cdrom /media/cdrom' which does mount the disk, but it still wont play. In VLC I get the error

'Playback failure:
DVDRead could not read block 0.

I also tried copying the files from dvd to my home directory, and playing it there, the files copy, but VLC just freezes up. I have tried xine, mplayer, smplayer, they all do the same thing.

Thanks for any help!

Edit: when insert a data DVD, the dvd doesnt show up at all in openbox, and will not mount manually either. no idea why this is. slitaz install from dvd, (i had no cds handy) so i know the drive works...

More information:
kernel:- vmlinuz-2.6.30.6-slitaz

machine:- Dell latitude C840

#root@froodem: /home/roo# wodim -scanbus
scsibus1000:
1000,0,0 100000) *
1000,1,0 100001) 'MATISHA' 'CDRW/DVD UJDA740' '1.00' Removable CD-ROM
1000,2,0 100002) *
1000,3,0 100003) *
1000,4,0 100004) *
1000,5,0 100005) *
1000,6,0 100006) *
1000,7,0 100007) *

My fstab file:-
# /etc/fstab: Information about static filesystems.
#
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
devpts /dev/pts devpts defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
#/dev/hda3 /home ext3 defaults 0 2
#/dev/hdb1 /mnt/data ext3 defaults 0 2
/dev/hda2 /home ext3 defaults 0 2
/dev/cdrom /media/cdrom iso9660 user,ro,noauto 0 0
/dev/hda3 swap swap default 0 0