Il giorno 3-01-2012 23:30, Kris Tilford ha scritto:

> On Jan 3, 2012, at 2:29 PM, Valter Prahlad wrote:
> 
>> I tried several external USB2 HDs, and the trasnfer speed always
>> seemed relatively slow (like 10MB/s at best).
> 
> Sounds like you're connecting to a USB 1.1 port rather than a USB 2.0
> port? 
WHAT!?!
I said 10MB/s. TEN MByte (B=Byte, b=bit).
Do you know USB 1.1 is 12Mbit/s, i.e. around 5-600 KByte/sec in real world?

It seems to me you're talking without really knowing what you're talking
about.

> That being said, USB 2.0 can be flakey sometimes, BUT, this is almost
> always because a certain USB 2.0 chipset has problems with OS X.
I obtained the same (average) speed on several computers, Macs and PCs.

The problem with USB, is not very much optimized because it relies on CPU as
well, while FireWire drives have more "intelligence" on their own, so they
manage faster speed without burdening the CPU (or so I read).

If USB 2 and FW would run at the same speed, then why, WHY Apple would have
developed and adopted FW???

> FW400 & FW800 should be virtually identical with the same single HD.
Then why, WHY engineering and adopting FW800?

I'm afraid you're misinformed.

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