Here is the link that the info came from. John
http://www.adamwilt.com/DV-FAQ-tech.html#DVformats
This seems to come up from time to time so here is some info about firewire. John
1394/FireWire
What is 1394 and/or "FireWire"?
IEEE-1394 is a standard communications protocol for high-speed, short-distance data transfer. It has been developed from Apple Computer's original "FireWire" proposal (FireWire is a trademark of Apple Computer). Check out the 1394 Trade Association, white papers on Adaptec's website, and DVCentral's links for pointers to additional 1394 sites for detailed information.
Sony calls their implementation of 1394 "i.LINK".
Why are DV and 1394 always discussed together?
They appear to have been developed together. The data stored on DV tape appear to reflect the packet structure sent across a 1394 link to a frightening degree of exactness. Certainly the DV format and 1394 High Performance Data Bus co-evolved, such that the first consumer DV camcorder in the USA (the Sony DCR-VX1000 and its single-chip brother the VX700) was also the first 1394-equipped consumer product available.
What does a 1394 connection do for me?
Plenty of good things:
# You can make digital dubs between two camcorders or VTRs using 1394 I/O, and the copy will be identical to the original.
# You can do cuts-only linear editing over 1394, with no generation loss.
# You can stick a 1394 board into your computer (PC or Mac), and transfer DV to and from your hard disk. If your system can support 3.6 MBytes/sec sustained data rate -- simple enough with many A/V rated SCSI-2 drives and with most ATA/EIDE drives these days -- the world of computer-based nonlinear editing is open to you without paying the quality price of heavy JPEG compression and its associated artifacts, or the monetary price of buying heavy-duty NLE hardware and banks of RAID-striped hard drives.

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