Understanding Digital Video Recorders
Digital video recorders (DVRs) allow you to record video using hard drives. These devices enable you to record video in high quality, and store much more data than alternative systems would allow. DVRs also feature very fast data retrieval. For even higher quality recording applications, you might consider HD DVRs.
Using Digital Video Recorders
Many people use DVRs for surveillance purposes and home entertainment needs. DVRs are ideal for recording security footage, and they integrate with video management software to provide additional functionality, such as motion-activated systems. If you find yourself running out of space for your security footage, you can expand your DVR's memory with additional storage for security recorders. Hard drives are a suitable option for expanding DVR memory.
Types of DVRs
Analog DVRs capture video footage directly from coax cameras leading to various security cameras, compressing the video data and storing it. IP systems rely on network video recorders (NVRs), which receive digital video footage directly from cameras. The video footage obtained by NVRs converts into digital data, usually by the video cameras themselves. Hybrid DVRs allow you to perform both analog and IP functions.
Analog vs. IP DVR Systems
Coupling a high-quality DVR with analog cameras is an effective option for a video surveillance system. Although IP DVR systems are newer, they require more advanced components and complex setup. But if you're aiming for a state-of-the-art video surveillance system, an IP system is superior in a purely technological context. Opting for a hybrid DVR allows you to enjoy the best of both worlds, and you'll have the option to upgrade from analog to IP in the future, if need be.
Whatever your recording needs may be, check out B&H Photo and Video for a wide selection of digital video recorders, including HD-TVI DVRs and related equipment.