You said your card reader is USB 2 - but is it USB 2 High Speed,
and do the ports on your laptop support USB 2 High Speed (vs. Full
Speed)?
Yes and Yes.
I was using my main computer, a high speed P IV with USB 2 on the
Abit max 2 motherboard, writing to a 8 mb cache sata drive. The
card reader is also very fast and is a true USB 2 speed
"certified"? vs just a USB 2 "compatible" reader. I am not certain
if those are the precise terms but I know that the with marketing
some people who think they are getting a high speed USB2 are in
fact not...
I was really surprised by the findings between these three
supposedly "top speed"(two of them) and "bottom speed" flash cards.
My only analysis is that perhaps the write speed would have been
different if instead of sending one massive 137 mb file to read and
write, I had sent 30 x 4 mb files instead.. perhaps with individual
read / write (like a camera would do) then the "seek time" of the
cf card would show the difference... then again I would expect that
data is data... little 1's and 0's and the cf card doesnt care if
its a image file or a windows file if its being read to and from a
high speed card reader.
Again, I was really surprised by the equality of the two results. I
know how poor the sandisk SD cards function with Tungesten Palm,
and that the read / write speed is poor (like 9% of the speed of
the lexars) but I never expected a card with no claims would equal
a card that is supposedly "x60" speed.
Perhaps in larger CF cards than 256mb it makes a difference? Once
again I would like to re-iterate that I used to belong to the camp
that "faster cards" make a difference, and, as with lab / research
work, theorums become more interesting when a negative conclusion
is reached rather than a positive one... makes one ask.... why???
