(written from a Production point of view)
David Ginsberg is a visual effects producer who worked as Executive Producer for the company Rick Zettner & Associates, Inc., the production company which created the transporter effect for Star Trek: The Next Generation in 1987. He worked as Executive Producer between June 1987 and March 1988 and coordinated the computer graphics and film productions, also for for national clients such as BASF, Case IH and ARCO. 
In 1989 he worked as computer effect coordinator for the company Omnibus Simulation, Inc. on the comedy Bill & Ted's Excellent Adventure. In 2001 he worked as CGI Line Producer for the company MetroLight on the science fiction thriller Impostor.