Regarding the PC booter demonlord releases, note that even though there's a "cracked or patched" folder, there's also some cracked/tampered dumps outside of it, such as the Alleycat image that's currently in MAME:
And there's also this note inside said folder:
Look in TDC for more cracked image files in td0 or img format.
Look for "game name (year)(publisher) [genre].img.zip"
.img.zip is used to denote these are disk images waiting to get converted to dos .COM/.EXE files.
Once a DOS conversion is created, the cracked disk image file will get moved here.
Fortunately, most of them have a "FILE_ID.DIZ" which describes which are the cracked files and which are the originals. For example:
Digger (teledisk+CP2+cracked image)
List of games inside that "cracked or patched" folder which are currently in MAME: