Audio Video Synchronizer can synchronize audio and video of movie. If the audio/video is out of sync, the program can help you correct the problem. It supports the video formats like avi, wmv, mpg, asf, dat, vcd, mpeg. If extra decoders are installed, it can support more formats such as divx, xvid, dv, mkv, ogm, svcd, dsm. The output video can be WMV or AVI. If you install more multiplexers/muxers, the program can output more video formats. So the program is a video converter also.