It seems so from the logs you supplied. However, you could also try cleaning your dvd with a cleaning kit. Also, check the data cable of your dvd drive and switch on dma - it's switched off in the bios now.
-- GUI Installer crashed... Ubuntu 6.10 off LiveCD https://launchpad.net/bugs/73058 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs