I've found Taiyo Yuden disks to be very reliable and reasonably priced (in bulk). http://www.digitalfaq.com/reviews/dvd-media.htm I have tried the verbatim disks they recommend and my burner (PIONEER DVD-RW DVR-108:) likes the Taiyo Yudens better. YMMV. On Feb 7, 2011, at 4:22 PM, John Erdman wrote: > Progress but I don't know why. > > The first time I tried ImgBurn the creation of the disk image went > well, but when I went to write it to a new disk, the available space > on the new disk was only about 1.55 GB. The write aborted as I > reported earlier. > > I was trying to respond to a question about ow much space was > available. I couldn't remember exactly so I stuck another new disk > in the drive... And wonder of wonders, the data on this new disk > indicated that there was a full 4.7 GB of space available. So I > tried burning it again. Et voilå, next thing I knew, I got a > message that said that my disk was written successfully. And then > I rushed down to the DVD player on my TV, it proved to be a fully > functioning backup copy. Perfect images and sound too. > > So maybe I'm having a Sony DVD disk problem like the one Dennis C > mentioned. I guess next shopping trip I'll pick up a brand of disk > other than Sony for some experiments. > > Again, thanks to all for your help -- Nick Scalise nscalise at gmail.com