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USB vs Firewire
camcorder to harddrive without getting sound lag in the video so I have been told I might need to stream video using the firewire. I went to look at some firewire cables on BestBuy and some of them are actually "slower" than some of the USB cables. So what's going on here? Im wondering if my USB 2.0 driver is on. I think I have it turned off in the BIOS because my computer kept freezing. I'll look into this. Thanks for any other tips/comments. Firewire 400 is rated at 400 megabits per second.
USB2 is rated at 480 megabits per second. Don't for a second believe that has anything to do with anything. Firewire isn't processor dependant and IS designed for video. USB is not. Just about any cheap, $30 firewire 400 card will do what you need. There's firewire 800 (800 megabit/sec) but don't bother. No consumer devices use it. Google search on "firewire versus USB video". C.j Show quoteHide quote "Bradley" <bnor***@kc.rr.com> wrote in message news:lUwae.34224$PA4.29796@tornado.rdc-kc.rr.com... > Okay, It seems my USB cable is too slow to transfer full quality video > from camcorder to harddrive without getting sound lag in the video so I > have been told I might need to stream video using the firewire. I went to > look at some firewire cables on BestBuy and some of them are actually > "slower" than some of the USB cables. So what's going on here? Im > wondering if my USB 2.0 driver is on. I think I have it turned off in the > BIOS because my computer kept freezing. I'll look into this. Thanks for > any other tips/comments. > Thanks for the help. It seems firewire is the way to go for streaming DVD
quality video to hard drive. I must get me a cable. Show quoteHide quote "C.J.Patten" <cjpatten@KNOWSPAMrogers.com> wrote in message news:zY-dnTu15rBEPvffRVn-sQ@rogers.com... > Firewire 400 is rated at 400 megabits per second. > USB2 is rated at 480 megabits per second. > > Don't for a second believe that has anything to do with anything. > > Firewire isn't processor dependant and IS designed for video. USB is not. > > Just about any cheap, $30 firewire 400 card will do what you need. > There's firewire 800 (800 megabit/sec) but don't bother. No consumer > devices use it. > > Google search on "firewire versus USB video". > > C.j > > > "Bradley" <bnor***@kc.rr.com> wrote in message > news:lUwae.34224$PA4.29796@tornado.rdc-kc.rr.com... >> Okay, It seems my USB cable is too slow to transfer full quality video >> from camcorder to harddrive without getting sound lag in the video so I >> have been told I might need to stream video using the firewire. I went to >> look at some firewire cables on BestBuy and some of them are actually >> "slower" than some of the USB cables. So what's going on here? Im >> wondering if my USB 2.0 driver is on. I think I have it turned off in the >> BIOS because my computer kept freezing. I'll look into this. Thanks for >> any other tips/comments. >> > > my firewire dvd burner users firewire 800 and it's a commercial unit
it really flies in comparison to USB and Firewire 400 Show quoteHide quote "C.J.Patten" <cjpatten@KNOWSPAMrogers.com> wrote in message news:zY-dnTu15rBEPvffRVn-sQ@rogers.com... > Firewire 400 is rated at 400 megabits per second. > USB2 is rated at 480 megabits per second. > > Don't for a second believe that has anything to do with anything. > > Firewire isn't processor dependant and IS designed for video. USB is not. > > Just about any cheap, $30 firewire 400 card will do what you need. > There's firewire 800 (800 megabit/sec) but don't bother. No consumer > devices use it. > > Google search on "firewire versus USB video". > > C.j > > > "Bradley" <bnor***@kc.rr.com> wrote in message > news:lUwae.34224$PA4.29796@tornado.rdc-kc.rr.com... >> Okay, It seems my USB cable is too slow to transfer full quality video >> from camcorder to harddrive without getting sound lag in the video so I >> have been told I might need to stream video using the firewire. I went to >> look at some firewire cables on BestBuy and some of them are actually >> "slower" than some of the USB cables. So what's going on here? Im >> wondering if my USB 2.0 driver is on. I think I have it turned off in the >> BIOS because my computer kept freezing. I'll look into this. Thanks for >> any other tips/comments. >> > > "Bradley" <bnor***@kc.rr.com> wrote in message It's a question of camera design, not theoretical specs. Camcorders are news:lUwae.34224$PA4.29796@tornado.rdc-kc.rr.com... > Okay, It seems my USB cable is too slow to transfer full quality video > from camcorder to harddrive without getting sound lag in the video so I > have been told I might need to stream video using the firewire. I went to > look at some firewire cables on BestBuy and some of them are actually > "slower" than some of the USB cables. So what's going on here? Im > wondering if my USB 2.0 driver is on. I think I have it turned off in the > BIOS because my computer kept freezing. I'll look into this. Thanks for > any other tips/comments. designed to do full-resolution data streaming through 1394. USB is intended only for still transfer, webcam use, etc. Don't waste your time trying to get good transfers with USB -- it's not going to happen. Buy a 1394 cable. Don't get suckered in to buying anything expensive -- the cheapest cable with the right connectors will work just fine. Show quoteHide quote > > PTRAVEL wrote:
> It's a question of camera design, not theoretical specs. Camcorders are While I basically agree with your statement concerning USB, it isn't > designed to do full-resolution data streaming through 1394. USB is intended > only for still transfer, webcam use, etc. > > Don't waste your time trying to get good transfers with USB -- it's not > going to happen. Buy a 1394 cable. Don't get suckered in to buying > anything expensive -- the cheapest cable with the right connectors will work > just fine. necessarily true. Pinnacle Liquid Edition Pro attaches the breakout box to USB2.0. Liquid Edition PRO breakout box (Component, Composite, S-Video, IEEE 1394 and Analog RCA S/PDIF). You can capture and edit HDV just fine as long as you have a computer system with the horsepower to handle it.
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"TonyP" <arpie***@Hooptonline.net> wrote in message Some times I think I'm writing in a language other than English. ;)news:eyBae.16850$ZQ1.11810@fe11.lga... > PTRAVEL wrote: > >> It's a question of camera design, not theoretical specs. Camcorders are >> designed to do full-resolution data streaming through 1394. USB is >> intended only for still transfer, webcam use, etc. >> >> Don't waste your time trying to get good transfers with USB -- it's not >> going to happen. Buy a 1394 cable. Don't get suckered in to buying >> anything expensive -- the cheapest cable with the right connectors will >> work just fine. > > While I basically agree with your statement concerning USB, it isn't > necessarily true. > Pinnacle Liquid Edition Pro attaches the breakout box to USB2.0. > Liquid Edition PRO breakout box (Component, Composite, S-Video, IEEE 1394 > and Analog RCA S/PDIF). > > You can capture and edit HDV just fine as long as you have a computer > system with the horsepower to handle it. From my post: "Camcorders are designed to do full-resolution data streaming through 1394. USB is intended only for still transfer, webcam use, etc." It's camcorder design, not the USB spec, that's the problem. I have external hard drives that I use for video edit and capture that are USB2, and they work great. However, the camera manufacturers decided on a standard (and this was well before USB2 was around). The standard is 1394/Firewire -- if you want to capture full-resolution DV25 from a camcorder, that's what you have to use. Show quoteHide quote > "PTRAVEL" <ptra***@ruyitang.com> writes: Unless you have a camcorder that will stream DV25 video through USB2 as>"Camcorders are designed to do full-resolution data streaming through 1394. >USB is intended only for still transfer, webcam use, etc." >It's camcorder design, not the USB spec, that's the problem. I have >external hard drives that I use for video edit and capture that are USB2, >and they work great. However, the camera manufacturers decided on a >standard (and this was well before USB2 was around). The standard is >1394/Firewire -- if you want to capture full-resolution DV25 from a >camcorder, that's what you have to use. well as Firewire. Canon specifically mentions that capability for some of their current models. Dave PTRAVEL wrote:
Show quoteHide quote > "TonyP" <arpie***@Hooptonline.net> wrote in message Understood. Sometimes my comprehension isn't up to speed. I would think > news:eyBae.16850$ZQ1.11810@fe11.lga... > >>PTRAVEL wrote: >>>It's a question of camera design, not theoretical specs. Camcorders are >>>designed to do full-resolution data streaming through 1394. USB is >>>intended only for still transfer, webcam use, etc. >>> >>>Don't waste your time trying to get good transfers with USB -- it's not >>>going to happen. Buy a 1394 cable. Don't get suckered in to buying >>>anything expensive -- the cheapest cable with the right connectors will >>>work just fine. >> >>While I basically agree with your statement concerning USB, it isn't >>necessarily true. >>Pinnacle Liquid Edition Pro attaches the breakout box to USB2.0. >>Liquid Edition PRO breakout box (Component, Composite, S-Video, IEEE 1394 >>and Analog RCA S/PDIF). >> >>You can capture and edit HDV just fine as long as you have a computer >>system with the horsepower to handle it. > Some times I think I'm writing in a language other than English. ;) > > From my post: > > "Camcorders are designed to do full-resolution data streaming through 1394. > USB is intended only for still transfer, webcam use, etc." > > It's camcorder design, not the USB spec, that's the problem. I have > external hard drives that I use for video edit and capture that are USB2, > and they work great. However, the camera manufacturers decided on a > standard (and this was well before USB2 was around). The standard is > 1394/Firewire -- if you want to capture full-resolution DV25 from a > camcorder, that's what you have to use. that the specs of the video camera would tell if it is capable of streaming video. I would opt for firewire and be on the safe side. The 400 and 480 are transient peak values and do not correlate with
suwstained throughput. Usb2 is adequate for current data rates, but is (in a proper design) about 30 % slower in sustained throughput than firewire. full hdtv is about 19 megs a second. Usb2 usually tops out at about 25 for sustained throughput. Stan Show quoteHide quote On Sat, 23 Apr 2005 18:57:21 GMT, "Bradley" <bnor***@kc.rr.com> wrote: >Okay, It seems my USB cable is too slow to transfer full quality video from >camcorder to harddrive without getting sound lag in the video so I have been >told I might need to stream video using the firewire. I went to look at some >firewire cables on BestBuy and some of them are actually "slower" than some >of the USB cables. So what's going on here? Im wondering if my USB 2.0 >driver is on. I think I have it turned off in the BIOS because my computer >kept freezing. I'll look into this. Thanks for any other tips/comments. > "uriah@nospam.net" <uriah> writes: Where does that figure for HDTV come from?>The 400 and 480 are transient peak values and do not correlate with >suwstained throughput. Usb2 is adequate for current data rates, but >is (in a proper design) about 30 % slower in sustained throughput than >firewire. full hdtv is about 19 megs a second. Usb2 usually tops out >at about 25 for sustained throughput. Broadcast HDTV is compressed to about 18 Mbits/sec, which is actually a lower data rate than DV video at about 25 Mbits/sec. Either of these are well within the capacity of both Firewire and USB2 high speed. But uncompressed HDTV is around 1500 Mbits/sec (SDI interface), far beyond both Firewire and USB2. On the other hand, the "25" number above probably refers to 25 Mbytes/sec disk I/O, which is 200 Mbits/sec. Gotta keep the bits and bytes straight to sensibly compare the numbers. Dave 
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