On Fri, 12 May 2006 09:17:49 +1200, you wrote:

>> Sounds like you need two controllers for sure. If you try to write 
>> them
>> in parallel without the full two controller setup, how will you know
>> when one fails?
>
>The application is for photos. I'm a keen amateur photographer and in 
>some cases I'm extremely keen not to lose photos. And, the system 
>would be saleable if it worked well. [Build it before I do (and I 
>probably wont) and I'll buy one :-) ].

You can get little pocket devices that copy from one USB memory device to another. 
I wonder if one of these would work with a USB CF reader, so you could copy CF cards to USB keys...?
ISTR reading that some CF cards (or was it SD...?) have a 'native USB' mode, so these certainly
ought to work this way.

I'm sure I've also seen a standalone device somewhere that will copy cards to a small hard drive. 
  

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