@X-Ray
Sorry, but I'm too lazy to read all the thread at this point, and judging from your latest answer I take it you haven't tried my option.
As my laptop has just died (power connector broke) I have to salvage the data from the disk as well, so it is pretty much the same we need to do.
I ordered such an adaptor as already linked to in this post, attached the harddrive to my Amiga 4000 IDE controller, booted the computer as usual. Downloaded fat95 from aminet, installed, edited the mountlist as described in the read me file and mounted the device. Well, what do you know? The harddrive popped up in Workbench, so I'm copying data as we speek.
I doubt that you will have any problems accesing the data on the disk, even though you need a password to access it when using a PC. Just copy all files to your Amiga harddrive, burn the needed files and ditch the rest. Just remember to use a file handling program that can handle large names, like Opus 5 can.