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Thread: USB2 or FireWire?

  1. #1
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    USB2 or FireWire?

    I've searched and haven't come up with much regarding this, so I'll ask the experts: between USB2 and FireWire, which is the one to go with regarding running an external DVD recorder (and its sundry standards)? Limiting just to 1394 shows a few drives in searches, but expanding to USB2 finds quite a few more; I'm just wondering if there's any technical reason to shun a USB2 drive in favor of a FireWire one in regards to DVD playback and recording.

    Any experiences, data, or drive recommendations would be appreciated!

  2. #2
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    The short: Firewire is faster than USB2 for HDs. But for external writers either would do fine. Firewire would also be more convenient if more than one device will be present on the same bus.

    Cheers,

  3. #3
    FLAC mbkowns's Avatar
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    firewire sucks usb 2 owns it ...
    2005 Ford Mustang GT <- - - UPDATED PICTURES

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    MBK (AIM = IllMBKllI)

  4. #4
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    actually firewire is superior to usb2. Firewire has an onboard processor that greatly reduces cpu load, while USB doesn't have such a thing resulting in increased cpu overhead. It's essentially the difference between SCSI and IDE, sure scsi is a lot better but it's generally a lot more expensive. USB2 should be fine providing you have a bit of cpu power to spare, which on most modern systems isn't a problem

  5. #5
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    thats odd seems that my cpu is never loaded down by usb2 etheir what you said was BS or my computer is unique
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  6. #6
    Maximum Bitrate eCar™'s Avatar
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    Quote Originally Posted by mbkowns
    thats odd seems that my cpu is never loaded down by usb2 etheir what you said was BS or my computer is unique
    Since what he said is not BS, your rig must be unique. Unless there's a third option.

    He didn't say your CPU would be "loaded down by USB". He said that USB requires more CPU resources than Firewire.

  7. #7
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    DVD playback and video encoding will most likely be the most processor intensive tasks done on the average car pc. This, coupled with the fact that not everyone has hardware MPEG-2 support, makes Firewire an even more desirable choice over USB2 for those of us with less powerful machines.

    By the numbers, USB2 can be faster than Firewire, but for this particular application, I'd recommend Firewire.

    -Randomtask

  8. #8
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    In theory Firewire should be slower then USB2 since firewire is “only” 400 mbits and USB2 is 480 mbits, but that’s as I said just in theory. Firewire will and have always has been faster and superior to USB2

  9. #9
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    Here is some real life testing:

    http://barefeats.com/image03/f35-rw.gif

  10. #10
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    I just posted this yesterday. Here it is again:

    Just an FYI... If you have a choice use your firewire port on your EPIA-M10K instead of the USB port. Firewire is a streaming interface and will do DVD playback without skipping frames. USB2.0, although the listed speed is faster than firewire is listing its burst transfer rates. Firewire streams faster than USB2.0, and because USB is an interruptible interface, it cannot stream and is not good for true DVD playback.

    Will USB 2.0 work? Kind of. But it requires more CPU and you will lose frames during playback.

    http://www.tomshardware.com/storage/...nal_hd-09.html

    Found a really thorough article on USB2.0 vs Firewire here:

    http://www.pcmag.com/print_article/0...a=36161,00.asp


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