firewire and usb2 are almost the same speed (I thought), obviously firewire 800 is gonna be faster (quick web search later)
Quote: "USB 2.0 has a raw data rate at 480Mbps, and it is rated 40 times faster than its predecessor interface, USB 1.1, which tops at 12Mbps. Originally, USB 2.0 was intended to go only as fast as 240Mbps, but in October 1999, USB 2.0 Promoter Group pumped up the speed to 480Mbps.
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Quote: "FireWire 400 can transfer data between devices at 100, 200, or 400 Mbit/s data rates (actually 98.304, 196.608, or 393.216 Mbit/s, but commonly referred to as S100, S200, and S400). Although USB2 claims to be capable of higher speeds (480Mbit/s), FireWire is, in practice, faster. Cable length is limited to 4.5 metres but up to 16 cables can be daisy chained yielding a total length of 72 meters under the specification.
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firewire is between 16% and 60% faster than USB2 on sustained transfers (depending on if it`s read or write), so the difference isn`t that huge in real terms, my external drive is on firewire because I ran out of USB ports (all 14 of them including the powered hub), but used on USB on my laptop it can stream Hi-Res video files happily enough, so for all intents and purposes it`s fast enough (imo), the 800 you mentioned is probably what the quote would call S800 and not mentioned by the site I found so apparently it`s a new speed upgrade (like the USB people moved the goalposts) I assume it isn`t that common yet unless you have a newer MOBO or interface card, I don`t so I couldn`t realy comment on it, but it should obviously be much faster than USB2, neither is as fast as an internal eIDE or ATA drive though, best to keep software on internal drives (eIDE 17mbsec/ATA 33mbsec iirc) imo.
Windows: 32 bit extension/graphical shell for a 16bit patch to an 8bit OS originally coded for a 4bit CPU, written by a 2bit company that can't stand 1bit of competition, now available in 64bits.