My experience is that CF is more fragile in actual practice than SD. 
CF's can and will shed the metal sides on occasion, exposing the ircuit 
board, especially when dropped or stepped on. SD's are rather tough in 
actual fact, and able to survive a fair bit more abuse.

-Adam



P. J. Alling wrote:
> I have both a D and a Ds.  So I use both cards.  The shortcomings of CF 
> cards mainly seem to be the mechanical connection.  There's been much 
> talk about pins breaking off on devices that accept them.  If the CF 
> socket is well designed and implemented, and you have 1/2 of a clue 
> about what you're doing, that doesn't seem to be much of a problem.  SD 
> cards have a much more robust connection.  On the other hand they are 
> probably more fragile, but due to their size it would take an effort to 
> snap one in half.  My main complaint about the SD cards is their size.  
> They are physically too small.  If I'm in a hurry when using the *ist-D 
> I can just drop a CF card in a pocket and pop an new one in the camera.  
> Not really recommended but I'm not too worried about losing it.  I would 
> never do that with a SD card, it might disappear into the pocket lint.
> 
> Shel Belinkoff wrote:
> 
> 
>>Comments made by Joe Tainter got me to spout off about the superiority of
>>SD cards over CF cards.  After posting my comments I began to think about
>>what I said.  Can anyone make a case for CF cards as being a better choice
>>than SD cards, apart from some CF cards having a greater capacity than the
>>current highest capacity SD cards?
>>
>>
>>Shel
>>
>>
>>
>>
>> 
>>
> 
> 
> 



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