[MacDV] Re: Hard drive for iBook video editing

[Mark M. Florida]

I think the problem with FireWire drives and DV cameras together on the 
same bus is that DV transfer is a real-time event, and has very little 
tolerance for latency.  Having multiple hard drives on the same 
FireWire bus isn't a problem since just copying files does not 
necessarily have to happen in real-time.  It's not so much sustained 
transfer rate as general control latency and contention...

Make sense?

Maybe FireWire 800 has taken things like real-time transfer into 
consideration and allowed extra headroom in the protocol for it.

If you're looking at getting a desktop for cheap, fast storage 
capability, just get a used G4 on eBay or something.

- Mark

On Monday, March 3, 2003, at 03:23 PM, Randy Wilson wrote:

> Thanks for the feedback.  It seems odd that there would be that much
> contention on the FireWire bus, since it was supposed to handle 64
> devices on it, but maybe it wasn't intended to have more than one _at a
> time_ trying to use it.
>
>> So shop around, check out reviews and benchmarks and get the
>> biggest, fastest drive that will fit internally in your iBook.
>
> The iBook is limited to 9.5mm height, and the biggest 5400RPM drive
> I've seen yet is the IBM/Hitachi Travelstar 40GNX, which is still only
> 40GB [$150].  There are a couple of 4200RPM 60GB drives, but I was a
> little worried about the speed.  There is the Hitachi 80GNX 9.5mm
> 5400RPM 80GB drive that is supposed to be coming out any time now, but 
> I
> haven't heard of one actually being available.  Plus I suspect they 
> will
> be more like $450.
>
> Sigh.  Maybe what I really need to do is get a desktop machine for
> serious video editing (where massive hard drives are cheap) and use the
> laptop only for portable editing.
>
>
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