Jampack

Jampack is a demo series from Sony under its PlayStation Underground brand (although the "Underground" name wasn't used on the first two Jampack discs, simply titled Vol. 1 and Vol. 2). It was used to advertise and preview upcoming, as well as already released PlayStation and PlayStation 2 games through demos and featurettes. Often, it also included imported game demos, behind-the-scenes videos on developers and games, as well as cheat codes and saved games. The Jampacks often served as a previe…