Anyway, I needed to burn a slide show that I could use on a DVD player. I had already saved the image file and I was looking at the size of the image, and it was much less than 700mb. So I wondered what would happen if I tried to burn it to a regular CD-R Disc. In Disk Utility, I selected the image and then chos Burn Image from the Image menu. I put in the CD-R, and with no complaints, it burned a perfect slide show to a CD-R that plays in my DVD player. This will save me a lot of money when I make slide shows for the family -- no more wasting 4GB DVD-Rs for a 200MB slide show.
[robg adds: I don't believe all DVD players will play CD-Rs, so this trick may not work for your particular setup.]

