I have CD failed to install too, especially with a CD burned from a different CD writer. The same CD may work on another PC though.
Having installed over 30 systems I haven't attempted to install from HDD myself as the CD route seems OK if I give it a few more attempts.
I may be wrong but this appears to be a special area.
Quantian site has a writeup on this method as they supply a distro bigger than a CD can hold.