- Child in Time (Live in Osaka, 2006) (Unreleased)
- Chosen prod. by John Petrucci
- Comfortably Numb (Ft. Queensrÿche)
- Constant Motion prod. by John Petrucci & Mike Portnoy
- Constant Motion (live)
- Constant Motion (Live at Madison Square Garden, 2010) prod. by John Petrucci
- Constant Motion - Live at Wacken 2015 prod. by John Petrucci
- Cover My Eyes
- Cover My Eyes (demo version 1996 - 1997) (Unreleased)
- Damage, Inc. prod. by John Petrucci & Mike Portnoy
- Damage Inc. (Live in Barcelona, 2002) prod. by John Petrucci
- Derek Sherinian Piano Solo [Live Version - Paris 1998] prod. by Kevin Shirley
- Descent of the NOMACS prod. by John Petrucci
- Different Strings / Analog Kid / La Villa Strangiato
- Digital Discord prod. by John Petrucci
- Disappear prod. by John Petrucci & Mike Portnoy
- Disposable Heroes