I'm capturing with composite, but only because I'm capturing from a VCR with no S-Video Output. If you have S-Video, use it. The signal will be far better in my experience. I've obtained a copy of King Kong/Son of Kong on LD that I'm sending to a laserphile friend along with the canopus. His capture will help make an educated statement on the quality of an S-video capture, but I'm expecting great things.