Classic IDE DMA possible?

[Lemmink]

I think the major liminting factor here is cost not the technical feasility. Look at how much a FastlaneZ3 cost when it came out and at that time you could spread developmentcost over much more sold units then you could today.
Zorro3 is much, much much more complex then Zorro II from what I understand thats why even in the high time of the amiga only a few Z3 cards were made.
I would love to have an DMA Z3 IDE card or a Z3 100 mbit ethernetcard but at an estimated retailprice of 250 EUR (just an approximation) how much units do you think you could sell ?

[Lemmink]

I wonder if IDE cards on the Mediator would work properly

Mediator can only do PCI <-> PCI DMA Transfers. Shoveling the Data from the GFX-Mem to FastMem through the 8 MB window by the CPU would make the whole DMA part worthless.

The only way for DMA for classic is either Zorro or G-Rex.