Firewire or IEEE 1394 is a port used for devices working with large amounts of data like camcorders, DVD players and digital audio equipment. IEEE-1394 and USB share a number of characteristics. Firewire currently handles up to 400 megabits of data per second. Most digital video cameras have an IEEE-1394 plug. When you attach a camcorder to a computer using IEEE-1394, the connection is amazing. With the right software the computer and the camera communicate, and the computer can download all of the video or photos automatically and with perfect digital clarity