I know it's junk. Belongs to a friend and the hard drive has failed. Shows in software with error and won't format. We're upgrading in a few months to a new system. I bought a cheapo hard drive just to get through till then. Is the DVR going to lose any of the existing settings because of the swap? Just checking. Assuming the existing HDD is dead, I guess it wouldn't be holding any settings, but I'm asking anyway. I've swapped before in my systems with multiple drives, but not one with a single drive. It's a Tigersecu 2mp DVR around 5 or 6 years old. Worst cams I've ever seen. Most of them are mostly purple cast. Terrible. Everything else is working live, just won't record.