Patent ID: 8249413

Claim:
A video recording system comprising: a first Network Video Recorder (NVR) that receives a video delivered via a video packet stream and records the video to a first long-term storage; and a second NVR that receives the video delivered via a video packet stream and temporarily stores the video in temporary storage for a duration of time sufficient to accommodate a failover of the first NVR to the second NVR; wherein a failure of the first NVR that is detected by a keep alive box at a first point in time triggers the second NVR to start recording the video to a second long-term storage at a second point in time that is after the first point in time; and, wherein the second NVR records the video stream to the second long-term storage beginning at the second point in time and transfers at least a portion of the video occurring between the first point in time and the second point in time from the temporary storage to the second long-term storage.