4Videosoft MKV Video Converter is a handy tool to convert your MKV, MPG, WMV, MP4, AVI into MP4, AVI, 3GP, FLV, MOV, VOB, or HD video. It also offers a wide range of editing functions such as to cut, to merge, to crop, etc. Anyone can easily handle it thanks to its wizard. It supports batch conversion and is compatible with the existing media players. In addition, if you plan to publish your videos online or to take them with your portable devices, this software can add a watermark and convert audio formats like AAC, AC3, AIFF, AMR, AU , FLAC, MP3, M4A, MP2, OGG, WAV or WMA.