Ezthumb - A video thumbnail generator based on ffmpeg.
Auto-Movie-Thumbnailer - AMT - Auto-Movie-Thumbnailer v11 THE Batch Movie ScreenCap Creator... Create ScreenCaps of - any number of movies, - located anywhere on your computer, -
MoviePrint - MoviePrint lets you create screenshots of entire movies in an instant.
Video Thumbnails Maker - Allows you to make thumbnails (caps, previews, screen-lists) and screenshots of video files.
Skreenics - Skreenics is a Mac OS X application that is designed to easily create thumbnails from your videos.
Image Grabber II .NET - Image Grabber is a free tool that can grab screenshots from any video file (avi, mpg, dat, asf, wmv, qt, mov, rm, rmvb