What is the difference between DV, Firewire, and iLink?
Not much. Theoretically, all are based on the IEEE1394 standard for digital video. However, in the real world, various manufacturers have tweaked the spec slightly for their own models. Luckily, these tweaks mostly have to do with power issues and transport controls for the camcorders. By the way, there are new versions of 1394 destined to hit the market soon with much higher throughout capabilities. iLink is a term used by Sony; Apple likes Firewire, and the rest of the industry uses DV or 1394.
