Hi again,
I'm having trouble trying to burn cds with my
SH-S203D CD\DVD-writer, I can read data from cds or dvd but trying to burn anything gives an IO error, I tried with K3b and x-cd-roast and I get the same following error:

How I'm I supposed to setup my writer?

You should check your permissions and make sure your user is allowed to burn CDs. The easiest way is to use K3b as your regular user, as follows. First, make sure your user is a member of the 'cdrom' group (your user should be a member of the plugdev, cdrom, audio and video groups any for automounting to work in KDE/XFCE and to avoid other problems, and I'll assume this is already done since you said you could read data from CDs/DVDs. If it is not, however, check out the sticky about HAL at the top of this forum). In K3b, go to "Settings">"Setup System Permissions" from the menu. Enter your root password to continue. Check the 'Use burning group' option and enter 'cdrom' in the box next to it. Check your DVD drive in the Devices section and check all three programs (cdrdao, cdrecord and growisofs) in the External Programs section. Click OK and you should be set.

You could always do the same using the command-line to change the permissions on the above mentioned programs and the DVD drive. If you have any further problems, just say the word (it would mean that something more complicated is going on). It should be noted that, at least for me, verification of the burn fails in the version of K3b that ships with Slackware. Since I usually just create an iso and burn using the command-line I wrote a script to verify CDs/DVDs myself, but if you want K3b's verification to work you'll have to either compile an earlier (or later?) version to get it to work, or wait for other people to chime in telling me why I'm wrong (others are generally better at these kinds of things than I).

Good luck.

I compiled K3b from source as you said and it worked.Thx.. But Thunar keeps popping an error when I press the eject button,only when I press eject in the right-click menu of the drive it ejects without error...

The_Beast, very strange. The only thing I can suggest is to make sure absolutely nothing is accessing the drive (ie make sure you're not in a folder on the CD/DVD in a terminal, make sure all file managers are closed, etc.). Can you post the full error message?

No, there aren't any applications browsing the dvd, terminal or gui.This is the error I get:

Try running `eject /org/freedesktop/Hal/devices/storage_model_CDDVDW_SH_S203D` (or whatever the mount point is) as root and see if it ejects it. If it does, it may be a permissions thing. Is your user in the cdrom, plugdev, audio and video groups? Do you have an uncommented line for the DVD writer in /etc/fstab (in a default setup it should be commented, and as far as I know it does not need to be uncommented)?

These are the two lines I have for the cdrom in fstab, the first didn't work so I created the 2nd.

and I couldn't find `eject /org/freedesktop/Hal/devices/storage_model_CDDVDW_SH_S203D` anywhere.
Instead I ran 'eject /dev/sr0' and it worked just fine..

You shouldn't even need an uncommented line to mount your CD drive in fstab. Try commenting that line out (put a # in front of it) and see if your CD drive autmounts. Also, make sure your user is in the cdrom, plugdev, audio and video groups or automounting in KDE through HAL won't work properly.