On Sun, 13 Jan 2008 22:02:40 GMT, Steve wrote:
>> With SD using serial data transfer, it may be a point in favor of
>>CF cards, which should then have the potential to have a much
>>greater data transfer rate. For me though, SD is fast enough. But
>
> Serial data transfer has much higher potential data rates. I can get
> into the technical reasons why if you want. But if you feel like
> doing your own research, just look up why SATA is faster than PATA.
Though it might be interesting, it's not worth the effort right
now, for reasons mentioned here not too long ago. I assume it has
something to do with the serial stream zipping along as fast as
possible (with possibly a clock signal), vs. parallel data having to
settle and remain stable long enough to be sampled. Do you know
whether SD (or SDHC) serial rates are high enough to exceed CF data
rates? From what I've read of tests performed within the last year
or so, Sandisk Extreme IV CF cards were the fastest, although these
had to use compatible Sandisk readers to achieve the fastest rates.
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