I have couple of DVD-9 music DVDs (with video). They have about 6.5 hours of playtime (no extras). When I try to back up, it shows it would shrink by 50%. When I click start, it errors out saying output file is 5.74GB is too large.

I undheck the Automatic Checkbox and set every title for 50%. It shows the total file size is 4.25Gb. When I ckick start, it again complains on file size. And resets the compression ratio to 75% for each title.

Successfully copied 3 dvds. They look and work great. But they were only about 3 hours.