Don't know if this is really a bug in printconf, but I'm sure you'll re-assign it accordingly. Upgrading from 7.2 to 7.3 via cdrom. Get the following message: The file /mnt/source/Redhat/RPMS/printconf-0.3.77-1.i386.rpm cannot be opened. This is due to a missing file, a bad package, or bad media. Press <return> to try again. Press return give me the same error. Jumped out to console (F2) and rpm -qip printconf-0.3.77-1.i386.rpm and I get the following error: read manifest failed. I probably have bad cd (just got them today too!) My bug is that you cannot cancel out of the "Press <return> to try again." screen. So, you're stuck. Can't move forward, can't move back. So, you end up with partial (and very broken) installation.
Use the 'mediacheck' option when booting the CD. It sounds like a bad CD, yes. But even if you could cancel, you'd still have a bad CD..