R.ef

- Separation Formula
- Rave Effect · 1995
- Heartbroken
- Rave Effect · 1995
- Brilliant Love (Broken heart2)
- Back To The Black · 1996
- Cry in silence
- Rave Effect · 1995
- The Deaf Sky
- Forever · 1998
- Swear to the skt...
- Forever · 1998
- Never Ending Story
- Forever · 1998
- Walking through Mind (Jungle Version)
- Second & Half · 1996
- Abyss
- Free Ruff Eazy Flava III · 1997
- 상심
- SBS Comeback Show Top 10 · 2011
- Memories In Fall
- Second & Half · 1996
- 서툰이별 (with R.ef)
- Romance-Before · 2006
- Jazz
- Back To The Black · 1996

The Last (Live)

The Last (Live)

1999
Forever

Forever

1998
Free Ruff Eazy Flava III

Free Ruff Eazy Flava III

1997
Second & Half

Second & Half

1996
Back To The Black

Back To The Black

1996
Rave Effect

Rave Effect

1995

백문이 불여일청 (In The Autumn Of 2013) - Jazz [Live] - Single

백문이 불여일청 (In The Autumn Of 2013) - Jazz [Live] - Single

2013
왜이래 - Single

왜이래 - Single

2013
2013 Hot Summer Cool Music - 이별 공식 - Single

2013 Hot Summer Cool Music - 이별 공식 - Single

2013
It's R.ef - Single

It's R.ef - Single

2012
Oldie But Goodie, Vol. 2 - Single

Oldie But Goodie, Vol. 2 - Single

2011

FORMED: 1995
GENRE: K-Pop

Noise
GOOFY
YTC
Roo'Ra
DJ DOC
DEUX
Steve Yoo
Solid
TURBO
Seotaiji and Boys