- Series: What If? Series Record # 28343
- What If?
- Quantum Dots (1989) [ES] by Robert A. Metzger
- Will the Real Alien Please Stand Up? (1989) [ES] by Robert A. Metzger
- Nonlinear Reality (1989) [ES] by Robert A. Metzger
- Pathological Perspectives (1990) [ES] by Robert A. Metzger
- The Ultimate Long Shot (1990) [ES] by Robert A. Metzger
- Vegetable Vision (1990) [ES] by Robert A. Metzger
- Don't Talk to My Grandma (1990) [ES] by Robert A. Metzger
- A Day in the Life (1990) [ES] by Robert A. Metzger
- On Autopilot (1990) [ES] by Robert A. Metzger
- Human Beings: Whence Did They Come? (1991) [ES] by Robert A. Metzger
- Neural Memories (1991) [ES] by Robert A. Metzger
- Factoids (1991) [ES] by Robert A. Metzger
- Chaotic Dollars (1991) [ES] by Robert A. Metzger
- Abstract (1992) [ES] by Robert A. Metzger
- Conference (1992) [ES] by Robert A. Metzger
- The Emperor's Twisted Mind (1992) [ES] by Robert A. Metzger
- Was He Fuzzy? (1992) [ES] by Robert A. Metzger
- Imagination (1993) [ES] by Robert A. Metzger
- Pass the Banana (1993) [ES] by Robert A. Metzger
- Sludgera Lives! (1993) [ES] by Robert A. Metzger
- Alien Invaders (1994) [ES] by Robert A. Metzger
- Dead Sea Squirrels (1996) [ES] by Robert A. Metzger
- Going, Going ... Gone (1996) [ES] by Robert A. Metzger
- If the Blind Could See ... (1996) [ES] by Robert A. Metzger
- Orangutan-Based Technology (1997) [ES] by Robert A. Metzger
- Mars or Bust: Living off the Land (1998) [ES] by Robert A. Metzger
- More Than One Way to Fuse an Atom (1998) [ES] by Robert A. Metzger
- Really Big Projects (1998) [ES] by Robert A. Metzger
- Unlimited Energy (1999) [ES] by Robert A. Metzger
- Distant World (1999) [ES] by Robert A. Metzger
- What If?: Science (Aboriginal, Spring 2000) (2000) [ES] by Robert A. Metzger
- Look Into the Light (2000) [ES] by Robert A. Metzger
- Extreme Futures (2001) [ES] by Robert A. Metzger
- What If? #36: Alone (2003) [ES] by Robert A. Metzger