Cult 90's stoner doom from Sweden featuring Tobben Gustafsson (Vomitory) doing vocals and bass, and Micke Birgersson (Dawn of Decay, Gehennah) on drums.
I don't know if these are technically demos but two very short releases (under 20 minutes each) from this Brazilian band. I had heard them advertised as an OSDM band or a throwback to early extreme metal. I personally get some black/thrash D666 type vibes from them. Pretty obscure stuff. I'm the only person that has catalogued these CDs on Discogs and the only listener on Last.fm
I think the second one is more put together, but there's some cool stuff on the first one, especially track two.