HDCCTV Hybrid HD SDI DVR easing the transition 08/05/2013 by Paul | Leave a Comment When HDcctv first came onto the market there was a good feeling about the technology but some in the industry doubted that installers would be able to persuade end users to convert their whole system to an HDcctv system. It was then that many manufacturers notably Everfocus decided that a hybrid HD SDI DVR could […] Read more » Hybrid HD SDI DVR