Thanks, guys, for your help. I was making that silly mistake of burning the CD as a file instead of as an image. Duh! I was able to boot up the PC using FC2 disc1 and ran mediacheck. It failed. Hmmm... Didn't say why, and I'm wondering how significant this may be. I'll try re-burning, but I hate to have to re-download the ISO files. Was wondering if it matters that I've tried re-writing to this single CD disc many times before (to try to burn this image). Could that be a problem? Should I use a fresh disc? TIA, Steve