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Non-Linear Editing on the PC
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Old October 29th, 2004, 10:14 AM   #1
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Capturing video bottleneck

My setup is XM2 to the only firewire port on my laptop, a 4 pin firewire port, but I want to capture to an external hard drive.
My question is if I use a firewire PCMCIA card to connect the external drive is that the slowest part of the data transfer.
CPU 2.7 with 512 RAM. Editing with Vegas 5.
IS USB 2 not fast enough for sustained capture rates?
What would be the recommended set up for a laptop with only the one firewire port?
Colin Rayner is offline   Reply With Quote
Old October 30th, 2004, 04:11 AM   #2
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Hi Colin,

Actually USB 2 is a bit faster than standard Firewire 400 so the sustained rate should be more than enough to feed the external HDD.

USB 2 is 480mbit/sec and standard firewire is 400.

Using a laptop the problems that may(with a big maybe) arise is that the internal data-bus architechture isn't coping with the load of reading fast firewire and putting it on the USB2 bus. But with a modern laptop as yours I don't belive that'll be any probs at all.

// Lazze \\
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Old October 30th, 2004, 07:44 AM   #3
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I too have a laptop with one firewire port. I capture to a USB2 external drive and have had no problems whatsoever so far, although it's not my main editing system and hasn't had that much work. The specs include P4-3GHz, 512 MB RAM, XP Pro (Media Centre Edition).
Some people might be interested in this real world example, with a twist. Earlier this week I installed the demo of DV Rack from Serious Magic. Using it I captured "live" to the external drive, no tape in the VX2000, and could immediately scrub and play back the resulting DV AVI files. No system issues at all.

David Hurdon
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Old October 30th, 2004, 11:58 AM   #4
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Thanks for that! Made my desion on which external hard drive, based on your guys input. Cheers!
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