The second burn hangs!?

Hi,
I’ve got Nero 2.0.0.1 running on Fedora Core 3, and I’ve just installed Nero, so I’m testing it by trying to burn the iso images for Core 4 to CD’s. The first one burned ok (though I haven’t tested it yet). No error messages. I put a new disk in, and tried to burn the second disk, and Nero hung, 5% in, writing the lead-in. It wouldn’t let me cancel or anything. I rebooted, and then it let me write disk 2, but not 3. Closing Nero and restarting it didn’t help. After my last attempt, I had to leave the machine, while it was churning away, and when I got back I found it had managed to cancel after 1 hour 11 minutes. It has written something to the disk, because it renders them unusable so I can’t retry burning to the same disk again…

Anyone have anything similar happen? any ideas?

Thanks,
Jim Jeakin