After more long nights of looking, Another Doom Level CD-Rom has been located and it is the first release in the German "BooM Power" series. On the disk is 650 wads along with cheats, new monsters, graphics etc.
This CD is from Archive.org and I don't take credit for its creation nor do I own it either.
Wads are in "Level" folder, you will need to use WINRAR to open ISO files. Running wads requires a sourceport such as Chocolate Doom, GZDoom, Zdoom or Crispy Doom to launch them.
Reminder that EXE files gives false virus positives and I've tested this file repeatedly to ensure it has no viruses or any "dirty" files attached.
This comment is currently awaiting admin approval, join now to view.