fahedakhter

We are using Samsung SNC-550 I-P camera in our mills. We are using 39 cameras & 2 SNR-32A network recorders. We have a backup drive in which the recording files is saved (ATV,NFA,NFV,VTP), the problem is that we want to view the recording data using Network Manager Software on Director system without installing Network recorder in his system. The Network manager software cannot open these files without the network recorder. Is there any other software available through which we can view the data inside these files without installing Network recorder? How can we handle this issue?