First of all, thanks for the replies.
Well, as soon as I get Windows XP to read it (I'm conviced that I'll need a regular USB->CompactFlash adapter), my plans are the following:
* Format the Compact Flash inside UAE (using all those -forcedetection and etc...) It's 1gb
* I'll set MAX TRANSFER to a value below 128kb
* Then I'll take DOPUS and copy ALL files from my DH0: to DH1: (which I expect to be my Compact Flash)
Would not work this way?
And... why some compact flashs are not supported? Anything in particular that I should search?