R.ef – Jazz
Track 05 from Album "The Last"
Release Date: 1999
R.ef – 하늘을 걸고
Track 03 from Album "The Last"
Release Date: 1999
R.ef – 고요속의 외침
Track 02 from Album "The Last"
Release Date: 1999
R.ef – Remember
Track 01 from Album "The Last"
Release Date: 1999
R.ef – 마음속을 걸어가 (Jungle Ver.)
Track 07 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – Rumors
Track 06 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – Good-Bye My Friend
Track 05 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – 두번째 여행
Track 04 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – 찬란한 사랑 (Classic Ver.)
Track 03 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – 가을의 기억 (Memories In Fall)
Track 02 from Album "Second & Half"
Release Date: 1996.09.01
R.ef – 이별 공식
Track 17 from Album "2013 핫 썸머 쿨 뮤직 (Hot Summer Cool Music)"
Release Date: 2013.07.23
R.ef – 찬란한 사랑 (Classic Ver.)
Track 22 from Album "Oldie But Goodie Vol.2"
Release Date: 2011.12.19