DVR sometimes referred to by the merchandising term personal video recorder (PVR), is a consumer electronics device or application software that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device. The term includes set-top boxes (STB) with direct to disk recording facility, portable media players (PMP) with recording, TV gateways with network and local recordings, recorders (PMR) as camcorders that record onto Secure Digital memory cards and software for personal computers which enables video capture and playback to and from a hard disk drive.The GV-5016 has 16 channel video inputs and 16 channel audio inputs. The hardware compression card is capable of REAL-TIME live display and records (480 FPS) for playback at high-resolution of D1 quality. GV-5016 has excellent image quality and high compression rate with the support of both MPEG4 and H264 CODEC. The card requires PCI Express slot. Hard-disk based digital video recorders make the "time shifting" feature (traditionally done by a VCR) much more convenient, and also allow for "trick modes" such as pausing live TV, instant replay of interesting scenes, chasing playback where a recording can be viewed before it has been completed, and skipping of advertising. Most DVRs use the MPEG format for compressing the digitized video signals. Video recording capabilities have become an essential part of the modern set-top box, as TV viewers have wanted to take control of their viewing experiences. As consumers have been able to converge increasing amounts of video content on their set-tops, delivered by traditional ‘broadcast’ cable, satellite and terrestrial as well as IP networks, the ability to capture programming and view it whenever they want has become a must-have function for many consumers. The term includes set-top boxes (STB) with direct to disk recording facility, portable media players (PMP) with recording, TV gateways with network and local recordings, recorders (PMR) as camcorders that record onto Secure Digital memory cards and software for personal computers which enables video capture and playback to and from a hard disk driveThe GeoVision GV-900A-16 Card provides up to 16 video channels, recording up to 120fps in total with H.264 software compression. Hard-disk based digital video recorders make the "time shifting" feature (traditionally done by a VCR) much more convenient, and also allow for "trick modes" such as pausing live TV, instant replay of interesting scenes, chasing playback where a recording can be viewed before it has been completed, and skipping of advertising. Most DVRs use the MPEG format for compressing the digitized video signals.[7] Video recording capabilities have become an essential part of the modern set-top box, as TV viewers have wanted to take control of their viewing experiences.

The GV-3008 Card provides up to 8 video and 8 audio channels, recording up to 240 / 200 fps (NTSC / PAL) in total with H.264 hardware compression. The GV-3008 Card provides the high-resolution live image with DSP Overlay. Even in multi views, the image on the largest division view can remain at the high-quality resolution.DVR sometimes referred to by the merchandising term personal video recorder (PVR), is a consumer electronics device or application software that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device. The term includes set-top boxes (STB) with direct to disk recording facility, portable media players (PMP) with recording, TV gateways with network and local recordings, recorders (PMR) as camcorders that record onto Secure Digital memory cards and software for personal computers which enables video capture and playback to and from a hard disk drive. Hard-disk based digital video recorders make the "time shifting" feature (traditionally done by a VCR) much more convenient, and also allow for "trick modes" such as pausing live TV, instant replay of interesting scenes, chasing playback where a recording can be viewed before it has been completed, and skipping of advertising. Most DVRs use the MPEG format for compressing the digitized video signals.[7] Video recording capabilities have become an essential part of the modern set-top box, as TV viewers have wanted to take control of their viewing experiences. As consumers have been able to converge increasing amounts of video content on their set-tops, delivered by traditional ‘broadcast’ cable, satellite and terrestrial as well as IP networks, the ability to capture programming and view it whenever they want has become a must-have function for many consumers. Based on the MPEG-2 and MPEG-4 hardware compression technologies, the new generation cards GV-2004 / GV-2008 are designed to meet high profile security demands. The GV-2004 / GV-2008 utilize MPEG-2 and MPEG-4 hardware compressions to free more CPU capacity from the intensive compression tasks. Compared with the flagship GV-Combo Card where videos are compressed with software compressions such as Geo MPEG-4, Geo MPEG-4 ASP, and Geo H264, the GV-2004 / GV-2008 provide an alternative for hardware compression. GV-2004 / GV-2008 both support multiple video and audio input ports, TV output, real-time display, and D1 quality video resolution. This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures. The Restriction of Hazardous Substances (RoHS) Directive is to forbid the use of hazardous materials of production. To meet the RoHS Directive requirements, this product is made to be RoHS compliant.

The GV-5016 DVR card has H.264 hardware compression and software. Install it on your computer and you can record 480 frames per second from 16 surveillance cameras. Footage can be stored on your computer and viewed live. It is easy to install, simply insert the card into the PCI slot and connect the security cameras. This card allows you to use your computer as a DVR for a much lower price than purchasing a DVR.