wizisi2k: then there's next to no chance anyone in the public will get their hands on a .adf file.
IIRC the file format for the SPS files is "ipf" or something like that, not "adf"...
Anyways, as the article says, at least most of the SPS files are already out there (p2p networks/torrents etc.). Apparently some people associated with SPS leak the files as they feel everyone should have access to them already now. Yes, piracy, similar to PC abandonware sites.
However, I am unsure if normal users are really looking for the SPS files anyway. Most Amiga emulator enthusiasts are probably fine with cracked adf versions of Amiga games, if the only difference is that the adf version has some pirate group name in the game credits or something, but otherwise the games are identical.
Also i recall there was specifically some Amiga space combat simulator where the original authors were even promoting the cracked version, as it would be the only version that could be run on any emulators, as if the crackers fixed some compatibility problem in the game or something. I don't recall the game's name anymore, I have a faint recollection it would have been a precursor to the I-War/Independence War space combat game that we have in GOG as well.
EDIT: I think I recall the name now, Warhead. No idea though if it really has any connection to the Independence War games, I just recall reading that sometime...
[url=https://en.wikipedia.org/wiki/Warhead_(video_game]https://en.wikipedia.org/wiki/Warhead_(video_game[/url])
The Wikipedia article mentions XF5700 Mantis on the PC is a spiritual successor to Warhead, no idea if there really is any relation to Independence War...