This refill is a sound collection for Reason 4. It is taken from the Sonic Reality Ultra Electronic Refill Collection. It contains:

SR Ultra Electronic NNXT Construction Kits

Drum & Bass "Construction Kits" = 20 (Waves = 299)
House "Construction Kits" = 11 (Waves = 98)
House 2 "Construction Kits" = 8 (Waves = 102)
Techno "Construction Kits" = 6 (Waves = 99)
Trip Hop "Construction Kits" = 17 (Waves = 255)
Trip Hop 2 "Construction Kits" = 17 (Waves = 300)

 * Note: Some mp3 demos are of the full product that this refill comes from.