There are certain profiles and formats available to rip DVD content to play on many popular devices. The defaults produce high quality and small size video and audio files. Whenever you change the settings for a particular output profile, save it as a Custom Profile. This profile can then be used to rip other DVDs using the same options.
All profiles that you save appear in the Customized Profiles list.
You can use custom profiles exactly like any other profile.
To make changes in a Custom Profile, select it from the menu and click the Customize button.