For those interested, I sent my FS-4 back to B&H after explaining to them (via phone) that it would not reliably record tapeless when triggered from my DVX camera. Five days after B&H received the FS-4, my credit card was credited with the purchase price. Bravo for B&H, but I still feel a bit mislead by the claimed "compatibility" by Videonics of the FS-4 with the DVX. I think I began to get a bit suspicious when reading the FS-4 owners manual, which directed me to their web site for camera-specific settings. Try as I might, I could not find any such information on their web site. Not a major confidence builder...