It's actually taken from the Global Underground - Electric Calm compilation. From volume 2. I've got volumes 1-5 and really enjoy them. The mixing is primarily done by prog house outift Trafik (a.k.a. The Forth) but I think Dubfunk mixed vol. 4. Definitely worth checking out.
In regards to that track, Trafik will often "enhance" tracks in these mixes, effectively making them one-off's that can only be found in their mixes.
For your health.