Well, the first time I heard 'bout Voyager was in 1999 or 1998, I guess, in the awesome collection named 'Expeditions', mixed by Sasha & Digweed (I think this must be a clasic!) , and yeah!, their song, named 'Pure Friction Groove', it's quite good, with some diferente trance style, but not so special. Then in Tranceport 3.
After a long time, I heard 'Aria-One(Voyager remix') and I got astonished, their sound changed sooooo much!! , with a darky-techy trance, very rythmic and bassy, in that moment I re-discovered them so I started to get their productions, their are a few, but badly the are 'out of stock' in the most of vinyl stores on line.
So please, if somebody has some of their productions or knows anyother, please leave me a PM.

Original productions:
2001
Super C
On A Mission
One Or Two
Motion
Jupiter Space
Panic
Awake
Time Travel
On A Mission

Remixes:
Aria - One
Bedrock - Beautiful Strange
Origin - Refined Intricacy 99'

P.D.: But do not get confused with the Drum n' Bass producer named Voyager.