Good-OK Video Converter is powerful, all-in-one video conversion software which supports converting AVI, WMV, MPEG, MP4, ASF, VOB, 3GP, iPhone, MOV, FLV to all other popular video formats including AVI, MP4, WMV, DVD, 3GP, iPod, iPhone, Zune, Xbox, PMP, PSP, Apple TV, Pocket PC, FLV, SWF, MOV. In addition, it can extract audio from video files and save them as MP3, AAC, AC3, AMR, M4A, OGG, and WAV. Features: Support converting between so many video formats such as AVI to WMV, WMV to AVI, WMV to MPEG, AVI to MP4, and MP4 to AVI. It can extract audio from video files and save them as MP3, AAC, AC3, AMR, M4A, OGG, and WAV. It provides batch conversion. You can convert multiple files at the same time. You can keep the default setting. You can also set the parameters by yourself. With Good-OK Video Converter, you will get any output formats with super fast speed and the most excellent quality.