Hack Vol.1xVol2 (Playstation 2 The Best) is a compilation of the first 2 .Hack games for Playstation 2:
1 - .HACK - INFECTION:
First in a four-part series, .hack//INFECTION is set in a near future when society has come to rely heavily on advanced network technology. Recently, a ban against online gaming has been lifted and millions upon millions of people have flocked to a new virtual reality known as "The World."
2 - .HACK - MUTATION:
Second in a four-part series, .hack//MUTATION is set in a near future when society has come to rely heavily on advanced network technology.