1984ishere

Hello everyone! This site is great! I bought a gently used March networks 4250 dvr from about 2004. My only complaint with it is that the factory no longer supplies manuals, software, parts or tech support for this unit. If anyone knows where I can get some software for this thing or even a manual that would be a great help. It is a 16 channel model with ide hard drives and it is 4u tall. Thanks again.