Groff Install Error Message

["j. e. bennett" <j_e_bennett@comcast.net>]

I bought a set of Debian-PPC disks from a link at Debian.org

Setting up the HD went smoothly.

The problem I'm having is that when trying to install everything is going
smoothly until an error message about a file located on the CD at:
pool/main/g/groff/groff-base_1.17.2-15.woody.1_po is corrupted and the
installation process stops.

Excuse my lack of knowledge but does this mean that the actual file on the
CD-ROM is corrupted or did I miss some configuration that is not allowing it
to install with default settings.

Thanks for any help.

Jim