ubuntu-tutorials.com/.../ubuntu-904-jaunty-released-torrents-avail\
able-here/

Just got it!

Be sure to check the md5sum against the list at:

https://help.ubuntu.com/community/UbuntuHashes

The first .iso I got did not match. It was a valid .iso that would
mount with "-o loop", so who knows what happened. Probably something
corrupt in the image, I would guess.