On Sat, 13 May 2006 14:18:36 +0100 (BST), you wrote:

>Dave,
>
>On Thu, 11 May 2006 21:16:11 -0400, David VanHorn wrote:
>
>> Why would you not just do forward error correction, and store it on multiple
>> cards conventionally?  Then you're protected from small bit/byte/block
>> errors, and from "dead card" errors.
>
>Reading between Russell's lines (!) I think for data-security he wants a device to plug into the camera 
>instead of the card, which then records the photo twice immediately, as part of taking the photo, rather than 
>doing something manually with the single card afterwards.  Hence his not being able to change the recording 
>side, only the card-emulator.
>
>I wonder if using the camera's USB interface (I guess it has one) to record to a belt-worn USB hard drive 
>would be feasible?

With some cameras, when plugged into USB they appear as another drive. I don't know enough about USB
to kow how similar this looks to a USB memory key, i.e. whether one of those USB-USB copier devices
might work to make a copy of the card without removing it from the camera. A possible issue though
is many cameras go into a 'pc connect' mode which suspends normal operation while connected. 


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