CDs are naturally very reflective, so you usually can’t make them completely non-reflective without losing the look that makes the backdrop interesting. The goal is to control the reflections instead.

Helpful approaches:

• Angle the CDs so they aren’t all parallel to the camera and flash.
• Move the flash off-camera and place it to the side.
• If using on-camera flash, bounce it off the ceiling or diffuse it rather than firing it directly at the CDs.
• Skip flash entirely if you have enough ambient light.

In general, reflections are strongest when the light source points straight back toward the camera. Changing the angle of either the CDs or the light is the simplest fix. A softer or bounced light will usually look much better than direct flash.