Some of them I can remember are:

Trance

Out Of The Blue - System F - Remixes
ATB - 9pm Til I Come - Remixes
Apache - Star Fighter (Promo)
1998 - Binary Finary
Cream - Blank & Jones
Angel - Ralph Fridge
Lizzard - Mauro Piccoto
Tsunami - Gouryella
Beyond Time - Blank & Jones
Found an Angel - JPS Project (White Label)

Happy Hardcore

Toytown - Hixxy n Sharkey
Heart of Gold - Force n Styles
Love of my Life - Brisk & Ham
Cloudy Daze

LOL Not many, but thats the sorta era I'm talking about..