The T1Q1.5 Video Teleconferencing/Video Telephony (VTC/VT) ANSI Subworking Group (SWG) was formed to draft a performance standard for digital video. Important questions were asked, relating to video digital performance characteristics of video teleconferencing/video telephony: a) Is it possible to measure motion artifacts with VTC/VT digital transport? b) If it can be done by objective measurements, can they be matched to subjective tests? c) Is it possible to correlate the objective measurements of analog and digital performance specification? The VTC/VT Subworking Group’s goal is to answer these questions. It has become a first step to the process of constructing the performance standard.