스카이 – Final Fantasy
Release Date: 1999.11.16
스카이 – The Third Sky
Release Date: 2004.09.23
Various Artists – 연가(戀歌)
Release Date: 2001.01.16
Various Artists – 순애보(純愛譜)(혼자 떠나도 외로워마세요…)
Release Date: 2002.05.03
Various Artists – 동감(同感) Ⅱ: Purple + Red
Release Date: 2003.08.05