I've been trying to burn an image (iso) on a DVD and it's been impossible, every single time i try the system freezes and i have to hard reset, and the logs are empty so i don't have a clue of what's going on.

I've changed the DVD burner (2 of them) and again the freeze, so it's not a problem of hardware (or so i think)

Finally i installed another program and, magic!, the image was burned perfectly and without problems nor hangs/crash/freeze...

KDE 4.6.1
K3b 2.0.2
Gentoo 64bits

P.S: it's not only one image that causes the freezes, anyone causes them.