I am using the Swann PC-DVR card & am happy with it for my needs (for now).  On one of my systems, I write my video data on a USB 2.0 hard drive so I can bring it home to view.  The problem is, the Swann software will not run unless it detects a DVR card.  I don't have or need a DVR card on the computer I am trying to review the video data, so I can not use their playback software. 
  
I am looking for a simple multi camera playback software that will allow me to watch all the camera data at the same time (mulit-screeen, zoom, playback speed, bla bla bla).  The data is stored in unique directories for each camera (CAM1, CAM2,etc) 
  
I can use Windows media player to view one camera at a time, but that is no good! 
  
Any thoughts? 
  
Thanks