When VIS captures a movie, it is loaded into a new window. Usually, this movie is not exactly the footage you are interested in because you initially just captured a set period of time. It is recommended that you trim off unnecessary beginning and ending frames to simplify movie layouts, reduce disk space used, and to focus your analysis on the important part of the motion.
Trimming off any beginning and ending frames is easily accomplished. First, start at the beginning of the movie and play or scroll it until you come to the place you want to keep the movie frames. You can easily find the best starting place for your movie by clicking on the play bar under the movie and dragging it to the best starting frame. Once you have positioned the movie to the point where you want it to start, delete all the preceding frames by either
Similarly, to delete any trailing movie frames that don't contribute to the movie clip, simply play or scroll the movie to the place you want it to end and then delete the trailing frames by either