Research for an external SD DISK][ Emualtor

I'm resarching for another SD DISK][ Emulator which could work as an external DISK][.

It will be connected on cable of FDD DISK][ controller and will work as real one.

Today, I got success to read only FDD and will keep to researh for writing.

It would be very helpful for APPLE IIc users who can't use SD DISK][ Emulator.

I will keep post what I'm doing. :)

Thanks

Ian kim