NCH Software is a company that specializes in graphics and video software, and one of their offerings is the Prism Video Converter software. This program allows you to convert popular video formats in to other types of video formats. Prism Video Converter Software for Windows converts all of the most popular video formats including mpeg4, divx, wmv, and more You can also set a specific size for the output of your file. Use the preview feature to sample the original file and see what the output video file will be before converting the video file. This helps ensure accuracy and the best output results Prism Video Conversion features: preview original video files; supports mpeg4, wmv, avi, and more; adjustable output settings; batch conversion function for bulk converting. Prism lets you set compression/encoder rates, resolution and frame rate of output files. Prism converts avi, mpg, vob, asf, wmv, mp4 and all video formats that have a DirectShow based codec. If you can play the video file using Windows Media Player, you can convert it using Prism. Convert from DVDs by simply adding the DVD, selecting the format and clicking convert.