Agile Video Joiner is the most popular video tool that join AVI/MPEG/MP4/MPG/WMV/ASF/MOV... videos to a large one such as AVI/MPEG/MP4/FLV/MOV/WMV/VCD/SVCD/DVD/etc.. It join multiple videos of different format with excellent image/sound quality. All parameters for different video formats have been set up well in form of "Profiles", so you need not worry about them. The software also provides comprehensive options for output control.