Q1. What's the limitation in the trial version of 123 DVD to Zune?

The limitation in the trial version is that you can only convert 10-minutes of a movie. The functionality is exactly the same in the trial version and full version.

Q2. I found that video is not in sync with the audio. How to resolve it?

First of all, if the source DVD is NTSC (USA), set the output frame rate to 29.97 or 23.976.

And please try the four options (None, Auto, Enhance, Force) in the drop-down list of "Audio Problem" each on 2 minutes piece and see which one works (Settings > Audio Problem).

Q3. When I convert DVD to Zune WMV format, I got an error message "Video codec not installed. Unable to begin writing". What happened?

Please install Windows Media Runtime.

Q4. I just want to rip a portion of a DVD, how?

You can just rip the movie clips you want. In the Copy Mode area, select DVD Clip.

Q5. How can I check/uncheck all the movie titles? How can I rename the output file?

Right click the mouse button on a title item to pop up the shortcut menu. With this menu, you can conveniently set the name of the output file, select target format, check or uncheck titles.

Q6. Can 123 DVD to Zune rip files encoded with CSS encryption technology?

CSS is an encryption/encoding method which is designed to protect DVD from being copied. 123 DVD to Zune can rip CSS protected movies.