UDMA high-speed compact flash memory cards have been generating a lot of buzz for a while and DPNow has done an in-depth analysis by testing them on the Canon EOS-40D, the Olympus E-3 and the Sony Alpha A700.
Here is an excerpt from their analysis and we suggest you read the whole article at their site and to come to your own conclusion.
“Of the three DSLRs we tested standard high speed and UDMA cards with, the fastest shooter - the Canon EOS-40D - worked better with the slower card. This demonstrates that high speed performance is not always enhanced by the use of UDMA cards”.
