WinX Free VOB to MP4 Converter is the best free VOB to MP4 converter software that helps you to convert VOB format videos to MP4 for free. It largely widens the usage of your VOB videos to be played on popular MP4 players or MP4 format supported devices. Besides, this free VOB to MP4 converter also can grab images and save as PNG pictures. While converting VOB to MP4 videos, this free VOB to MP4 video converter brings excellent quality.