Kick off Leawo Video Converter Ultimate to enter the home page, where you need to click “Convert” button on the sub-menu to enter the converting interface.
Step 1: Import Source Files into Program
On the converting interface, click "Add Video" button to import source video or audio file, or click "Add UHD/Blu-ray/DVD" to import DVD disc, folder, or ISO image file. Alternatively, you can directly drag and drop source DVD/Video/Audio file into the converting panel. Once source files are imported, you can preview source files via the inbuilt media player, select subtitles and audio tracks, edit source files, etc.
If you import source DVD content, you will be provided three options for you to select: Full Movie, Main Movie and Custom Mode. Full Movie allows you to import all titles, and Main Movie only imports the longest title by default while you can freely choose titles for importing under Custom Mode.
Step 2: Choose output profile
There is a drop-down box named "MP4 Video" by default next to "Add Photo" button. Click the box to pop up a small panel, where you need to click "Change" 
Step 3: Set video and audio parameters (optional)
Leawo Video Converter Ultimate allows you to change the video and audio parameters of selected profile like Video Codec, Bit Rate, Resolution, Frame Rate, Aspect Ratio, Audio Codec, Channel, Sample Rate, etc. You could enter the Profile Settings panel by clicking the same drop-down box and then clicking "Edit" option instead of "Change" option 

Step 4: Set output directory
After profile settings, you will be returned to the converting panel, on which you need to click the green "Convert" button to set output directory for saving the output files. Once 
Step 5: Start conversion process
Click the "Convert" button 