Dear CCTV Elites, 
  
I am intending to install a CCTV system in my small retail shop in Singapore. After some reading, I decide to purchase AVTech AVC791A from ebay. (http://cgi.ebay.com.sg/4CH-H-264-Standalone-Security-Network-DVR-CCTV-System-/370418176916?cmd=ViewItem&pt=AU_Security_Equipment&hash=item563ea4d394) 
  
It is cheaper to get from them with free shipping. However, I have a question. 
  
I am enquiring on the USB backup function of the above mentioned AVC791A DVR. I understand that we are able to do backup through the USB port to USB devices like thumbdrive. 
  
However, may I know what will the file format (*.avi, *.mpg)  be if I backup using the USB options? Will I be able to select the file format to backup into the USB thumbdrive? 
  
I am intending to backup the recorded CCTV footage daily and plug in into my DVD player or LCD TV with USB inputs.  
  
Thanks 
Aaron 
Singapore