From MediaRightSoft:Free AVI MP4 WMV MPEG Video Joiner joins multiple large video files or short clips of different formats into one. It is a simple yet powerful joining tool which allows you to merge multiple video files in the same/different formats into a large one (such as AVI, MP4, FLV, WMA, 3GP) to enjoy without interruption. You can add an unlimited number of video files as you like to the list and easily rearrange their order if needed. The presets are provided for quality adjustment within clicks. You may input as many videos as you want to finish the joining in a split second. The joined video can be saved in several formats, each of which has many optional preset qualities for iPod, iPad, iPhone, PSP, mobile phones and more, so you can enjoy them anywhere, anytime.