What was that one mod...(Nevermind, Found it!)

[Sono]

I played it a few years ago, and remember loving it, but got stuck on a puzzle, and after switching computers, it was gone and I can't remember what it's called. Retail version lost, I bought the steam version while it was on sale with RoE, so I'm back here wondering what that mod was.

Basically it was supposed to be a bit more difficult and has a lot of "arena" levels, with pacing reminescent of the original games, but with original levels and a few recreations here and there (I recall one level was Dead Simple). It had a custom, main menu that had one of the Doom 64 tracks playing, and was for some reason windowed.

I don't remember what it's called or where I got it from, I recall it was fairly popular for a while though, help would be appreciated, as I never beat it, i'd love to go back to it :P

Edit: Found it just now. "In Hell - Director's Cut" I'll leave a link here if anyone else wants to try it http://doom3.filefront.com/file/;83607