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DV footage and USB 2.0
Hi. Sorry, I know this is rudimentary but I get inconsistent answers.
In using mini-DV, basic 3.8 megs/sec throughput, can I use an external USB 2.0 disk to capture to and edit from with my source materials on it? I have always used FireWire but now have a laptop without it. Will it work, given the inconsistent (although faster) datarate?
Thanks
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5 Replies
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[scott dodds] “can I use an external USB 2.0”
NO USB is not good for video. USB works with bursts of data therefore it just cant handle the constant data rate that video requires.
[scott dodds] “Will it work, given the inconsistent (although faster) datarate? “
A faster burst is still a bust.
Think of USB like a drinking fountain where somebody keeps pressing down and letting go of the button. Its still hard to fill a glass of water. all that USB 2 gives you over USB 1 is a bigger hole on the fountain it still does not stop the burst of water.
There are no “technical solutions” to your “artistic problems”.
Don’t let technology get in the way of your creativity! -
I’m sure Zane is correct- but I do it all the time. The biggest problem I have is with “green” drives that spin down when they’re not in use.
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Yes, this was my understanding too. I just have had so many people tell me otherwise that I was beginning to doubt it.
Thanks.
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Yes, I hear this too! My problem is my firewire port died on my laptop and I want to use it in the field.
I think what confused me is that some newer consumer camcorders use USB instead of FW now to transfer from the camera to the computer. But now that I think it through, that’s just data being copied and so a constant data rate in that context isn’t important. thanks again
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[scott dodds] ” that’s just data being copied and so a constant data rate in that context isn’t important. “
Until the transfer rate lags the medium, like a transfer to or from a rolling tape.
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