How to convert VOB to AVI with high quality

http://www.applesw.com/Video-Converte...
3herosoft Video Converter allows you to convert among various video files such as AVI to MPEG, MKV to MP4, WMV to AVI, WMV to MPEG or H.264/MPEG-4 AVC, 3GP to MPEG, etc. The converted files can be played on almost all fashioned portable devices including iPod, iPhone, iPad, PS3, PSP, Xbox, Apple TV, Zune, Creative Zen, BlackBerry, Mobile Phone, Archos, Pocket PC, and so on.