Recording is intrinsic to NewTek 3Play, and is configured for specific a/v sources when creating your live production session (see Section 5.1, Introduction to Sessions). Pressing REC on the Control Surface (or clicking the Record button in the titlebar on the Replay Desktop) activates continuous capture of all configured sources.
Typically, each recorded stream will comprise the output from a different camera angle. (Up to the limit of sources supported for the session type, Standard or Redundant, input sources not configured for recording can be viewed as reference and output live – but are not available for replay purposes.)
For more information please download the entire document at http://new.tk/rt-m3p