I doubt that CD integrity is a factor here. Failing to recognise the partition table is usually either a parted bug or a linux bug, depending on the exact situation.
Could you please attach /var/log/syslog and /var/log/partman to this bug, following the directions in http://wiki.ubuntu.com/DebuggingUbiquity/AttachingLogs? Thanks in advance. -- SATA HDD existing windows/linux partiton not recognised by installer https://bugs.launchpad.net/bugs/158964 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