Where do you get the wad which gives doom 2 the sounds from doom64/absolution?

I saw some footage of doom 2 but with the upgraded sounds from doom64/absolution. So where do I get this wad???

IDCLEV30...

http://www.box.net/public/re05bh5bqz
Sounds were ripped directly from the PlayStation Doom WAD. They are the same sounds used in Doom 64.