CF or CFast Duplicator Frequently Asked Questions
Q. What is the default setting for Fast Copy feature on the CF or CFast Duplicator series?
A. Fast Copy must be set to OFF.

Q. I'm trying to copy a larger capacity source CFAST card to a smaller capacity target CF card. I used Copy Size to decrease the capacity of the source CFAST card and when I copy, the duplication process completes successfully. But when I connect the target CF card to my system, disk utility sees the CF card as RAW. Why is this the case?
A. You will NOT successfully copy a larger capacity source CFAST card to a smaller capacity target CF card. This is a known issue and there is no fix. A workaround for this issue is to create a partition on the CFAST card that is smaller than the target CF card.