Dunbar Pappy:

This may help:
“VirtualDub” is an easy to use video capturing and processing program that works with any Video for Windows compatible device. It helps you to get video onto your computer by capturing it from a source like your web cam or other input device, and also to edit existing video files you may have. Capturing features include fractional frame rates, optimized disk access, create AVI2 (OpenDML), integrated volume meter and histogram for input level monitoring as well as Real-time downsizing, noise reduction, field swapping and more. Editing functions include AVI2 read/write/, integrated MPEG-1 and Motion-JPEG decoders and an extensive video filter set, including blur, sharpen, emboss, smooth, 3×3 convolution, flip, resize rotate, brightness/contrast, levels, deinterlace, and threshold. You can also remove and replace audio tracks without touching the video and apply bilinear and bicubic resampling without blocky resizes or rotates. In addition, you can decompress and recompress both audio and video, remove segments of a video clip and save the rest, without recompressing as well as preview the results, with live audio and more.