Hi Grégoire, I suspect that your problem comes from grosisofs (or faulty hardware) since that is the problem that k3b uses to burn to DVDs.
Have you tried to reproduce the problem using another front-end to DVD burning software ? One such front-end is "gnomebaker". Another thing to try is to use growisofs directly. You can have a look at the manpage, but something like this should be sufficient: growisofs -Z /dev/dvd -R -J /some/files I hope this helps. Francois
