Frameserving is a process by which you directly transfer
video data from one
program on your computer to another, with no intermediate or temporary files
created. The program that opens the
source file and outputs the video data is
called the frameserver. The program that receives the data could be any type of
video application. Frameserving a video can save on disk space and also increase
compatibility by enabling you to open a file in an application that wouldn't
normally support it.
[Adapted from
AviSynth]