Originally Posted by jbenam
I know that CF is ATA compliant, but there are a lot of SD-to-IDE converters around, and they seem to work pretty well even if SD isn't ATA compliant natively.
You answered that yourself: CF can work with the existing drivers, SD can't. If you're willing to pay for driver development and hardware re-design, let me know. Otherwise, let me assure you that CF may be a little harder to find than SD, but won't die out any time soon. There are too many industrial uses and high-end digital cameras that use CF.