I'm going to seriously rethink this backup to CD strategy. I have an old CD burner that is very slow. It took about 12 hours to backup my entire Poser installation, and 7 CD's in the end. I've backed up lots of stuff onto CD, and haven't had much trouble for the most part. I do have some redundancy here. I sometimes go through and reorganize stuff. I never throw away the original CDs.. It's saved my butt a few times.