Trying to install Lubuntu 12.10 to an old PC (Duron 1200 on Asus A7N266-VM with 756MB). I did an MD5 check of the ISO. First couple of burns to CD-RW wouldn't boot, so tried again to CD-R with verify option in K3B. The MB does not support boot from a USB flash drive.
This booted to a live system, but the install failed. Could be this problem https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/996568
Since then I struggle get it to boot again from that CD. Always drops to Busybox, sometimes with 'Unable to find a medium containing a live file system'.
Is it possible the CD has failed in the few hours since I burned it?