I don't think this has anything to do with you dvd drive being an usb one. Try to burn the disc again or try Hardy.
** Changed in: ubuntu Status: New => Invalid -- Gutsy LiveCD does not boot from USB drive https://bugs.launchpad.net/bugs/135227 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs