This demo disc was released with "Station Magazine", although I haven't been able to find out exactly when it was released. My guess would be 1998, before the release of Metal Gear Solid, but it could even be 1997. Besides the Metal Gear Solid trailer, it also features a playable demo of Tomb Raider 3, and a short video clip of "Virtual Lara" advertising the game, which was previously only seen at trade shows.