# Disabling a Secondary Stream

Navigation: Working with Nx Witness > Device Management (Cameras, Encoders and I/O Modules) > Setting Up Cameras and Devices > Working With Expert Device Settings > # Disabling a Secondary Stream |

It is possible to disable the secondary stream entirely. This may be necessary, for example, for very old cameras where the secondary stream has motion detection but does not support H.264 Codec. In this case it is helpful to reduce the demand on storage space by disabling the secondary stream so it is not recorded.

Note: If the resolution of the primary stream is more than 1024 x 768, software motion detection will be disabled. If the primary stream resolution is less than 1024 x 768, motion detection can be performed there.

To completely disable a secondary stream

1.Open the Camera Settings -> Expert tab.

2.Check Disable s econdary stream.

3.Click Apply, OK or Cancel.

IMPORTANT: This setting is ignored when "Keep camera stream and profile settings" is checked. See "Preventing Nx Witness from Changing Camera Streaming Settings".