I am trying to repair the camera system at the theater that I work at. About a year ago, somebody screwed with the system, a GE Digia 216-640, so that it will not record. My managers had a tech come out, who set up the network viewing, and who stated that the drives were just corrupted. I reformatted the drives to standard NTSC format. The unit does light up the HDD light, but will not show HDD in the information menu and states no disk when its viewing cameras. Any help would be appreciated.