The .hack//Liminality Original Soundtrack was originally released in North America with the third .hack//SIGN Limited Edition DVD. The entire soundtrack is composed by Yuki Kajiura. Unlike the other soundtracks, it is a two disc set. The first disc features music from the Liminality OVA. The second disc includes both edge and Sea of Twilight by See-Saw. Much like the SIGN soundtracks, this soundtrack features slow classical pieces as well as the occasional upbeat rhythm.