dwoody1 0 Posted March 9, 2015 I have a sentient M-Link cctv 4 channel 960H with 2 700TVL hi resolution security cameras. The problem i have got is no matter what format the usb is in, I keep getting file error when trying to back up from the dvr onto usb, I have had 3 breakins to my van this past month but cant back them up to view anybody had this issue and solved it, your advise would be great. Share this post Link to post Share on other sites
