WMV Joiner is an easy-to-use tool for joining several WMV files into a bigger one. Because the program does not recompress the wmv files, the audio and video of the output wmv file do not have any quality loss. And the conversion speed is extremely fast. It also supports to drag and drop files. Only the WMV files, which have same frame rate, frame size, video and audio codec parameters, can be joined. WMV Joiner supports multi-languages.