I did a verification of the checksum and it was correct. I did a media check and it passed. Burned another CD just to verifiy and both passed the media check. I have not done a check sum on the CD because, frankly, I do not know how. But I can live with the formatting being ext2. But I would like to be able to watch flash videos in Firefox. As I said, Opera works fine. So it is something in Firefox. I did a reinstall of it and still the same problem.
I did not try to install the CD burned at 16x, mainly because the last two times I have installed a copy of PCLinuxOS I have had the existing installations refuse to boot. I have a 2009.2, fully updated version and an older KDE4 installation and both have checksum errors when they try to install. They worked fine before I installed the version under discussion. The good news is, I can still access them from the current installation. I just cannot boot to them. I have not tried to fsck them, yet. That might cure the problem. But as long as I can access the data, booting to them is really not a matter of great importance.