First time post...
I've seen the NTSC releases of Pinball Dreams and Fantasies mentioned around the net a few times (and Dreams now being released).
Haven't looked at the Dreams version disk encoding, but I can tell that Fantasies gives hard times when atleast converted with Kryoflux tools to for example the CT RAW format which can be loaded into WinUAE with the dll.
Amiga had such wide variety of disk protections developed that it's hard to come up with some automated solution to identify every possible format variation and Pinball Fantasies has bit patterns in the encoding that even on a preservation dump of the disks are hit and miss unless you come up with a tool to verify that you pick the correct data from the dump.
Both Dreams and Fantasies dumps should load ok in untouched form on WinUAE from the so-called Extended ADF when converted such that each track is verified.