The nDVR technology offers the possibility to record a livestream and at the same time play, pause, resume and rewind the recorded stream.
In Wowza you can activate nDVR by clicking on the submenu item of the same name in your livestream application and activate the function there via the Edit button.
"DVR Window Duration" defines how far the livestream should be kept, i.e. how far back it should be possible to rewind.
More information about nDVR in Wowza can be found here: https://www.wowza.com/docs/wowza-ndvr
