Reducing color depth to decrease disk usage
If you enable video capture auditing of user activity for an installation, the color depth setting affects the size of sessions stored in the audit store database. Depending on whether you want higher quality video playback or lower disk consumption, you can modify this setting. The growth rate is linear as you increase or decrease the color depth.
Based on a simulation of user activity, changing the color depth from 16-bit to 8-bit reduces disk space by 42%. Changing the color depth from 32-bit to 16-bit reduces disk space by 34 to 39%. If you can accept the lower quality video playback, changing the color depth from 32-bit to 8-bit reduces disk space by 62 to 65%.