Contains newly produced OVA "Unison," all 4 episodes of the OVA series ".hack//Liminality" (supplied with the PlayStation 2 game), and a newly produced sound drama ".hack// Tasogare no Udewa Densetsu." "Unison" stars characters from PlayStation 2 game and ".hack//SIGN." ".hack//Liminality" is about a former director of The World's Japanese-language version, and three girls who help him out. The audio drama picks up where the animated series left off.