Step 1: Add file
Click "Open DVD" button to find the DVD folder of the movie you want to add from your hard disc or DVD-ROM, open your DVD folder, select the VIDEO_TS folder and click OK.

Step 2: Select output format
Choose one or more files in the file list, click "Profile" drop-down button, select an output format for selected files in the drop down list that opens.

Step 3: Convert DVD to iPhone
After finishing the above settings, check the files needed to convert in the file list, and click "Convert" button on the main interface, to start converting the files. You can view the conversion progress from the progress bar at the bottom of the window.

Read Guide: How to Copy DVD to iPhone?