There are two main types of recording systems in the market. The first being the DVR which is cheaper and easier to setup. The second being the NVR which is fairly more expensive and requires some technical knowledge.
DVR (Digital Video Recorder) are mostly wired. You need special equipment to make it wireless.
NVR systems (Network Video Recorder) run either via ethernet cables or wireless. Higher picture quality (720p, 1080p) can be achieved by NVR compared to DVR.
[DVR] cables are not ethernet, mostly its a two core wire for signal, and u need an additional cable for power. [NVR] cables are ethernet if you go with the wired option. Also there are PoE (Power over Ethernet) meaning both power and signal can be sent through one ethernet cable. You could also opt in for wireless at the time of purchase.
[DVR] uses analogue cameras which need a two core cable for signal. Usually coax cables are used. [NVR] uses IP cameras as those type of cameras work on a network using ethernet cables.
The larger the HDD, the further you can playback. The higher the quality of the camera, the lesser you can playback as it takes more space.
In my estimate a 8 channel 1080p with a 1TB HDD will give you roughly a week of playback. Probably lesser cos the quality is high.
DVR and NVR explained
Re: DVR and NVR explained
@MilesSawyer Hello and Welcome to the Forum
Interesting Post.. Sadly it is little behind times...
DVR or NVR what is easier to setup? DVR Safer because you only have 1 IP to worry about hacking... POE NVR is safer then a normal NVR however I have a POE Switch and my NVR still safe as I don't have to worry about outside people gaining access to my NETWORK.. However that isn't 100% true... POE NVR would be safer then my setup because NO access to cameras past NVR so it is like my DVR's that only has 1IP to the Network....
1TB for 8 cameras at 1080P with Both Normal and Sub Streams also Recording Motion JPG your looking at 3 days of record time at full 30FPS if your machine could even do that...
Also DVR and NVR there is NO one easier to setup over the other one... other then the DVR you only have to Plug on the Cameras and Bam they are recording...
DOWN fall of the NVR in my MIND.... I have 8 ch NVR... I have 8 cameras that come up on my list of cameras to add. I add them now I have to go in and change all the Passwords to reflect the camera password... Then before you can even get to the 8th camera your camera locks you out because your NVR tried to access it to many times with the Default Password.....
I setup my DVR cameras, I have all my cables run, I plug in my BNC to the back of my DVR, Wire down my Cameras to my Power Distribution Center either 12vDC or 24VAC depending on where the camera is and if it is dual voltage as most of mine are.... Plug them in turn on the DVR and every ch comes online and starts recording out of the box.... No need to go and type in a bunch of Passwords.... I can install 2 16ch DVR's and 32 cameras and have them up and recording by the time I could install and setup to record over a 16ch NVR and 16 cameras.... Biggest Block on an NVR is the constant typing in a Password every time I want to change something.....
Want to make change to my Motorized Camera on my DVR... Press the PTZ button click the Iris, down or up to get to menu item I want, make the change... press the iris button again then click on end and done it saved...
NVR I want to make changes. Press the PTZ type in password click on Menu hummm nothing lol... oh yeah wait I have to log into the camera, Bring up IE, Chrome or some other Browers, Put in IP address wait I have so many cameras what was that IP again.... Oh well here it is ok now Put in IP bring up Setup wow there is a lot in here... HUMM things I will NEVER USE... Yeah Ok so there is the Fact that you can use your KEYBOARD on your computer to do things that you don't really have access on your DVR or wait SURE YOU do use the CMS software even can name your Preset lol... Man to much work... Why do I want to spend 100 hours making setup changes that I can just use my DVR to make changes over my cameras that is even if my Cameras offer menus as loads of my DVR cameras aka Analog cameras don't even offer any menus... If they do I can access them over Coax or over my RS-485 controller... Either way it is much faster and easier to access DVR and DVR cameras then it is over a NVR an IP cameras.... But wait did you know I have even 1 more thing... My dvr also offers the ability to use IP camera so my 16ch DVR is not 16 ch when I add 2 IP cameras I have 18ch DVR... However lets look at using a Cool Analog camera on your NEW NVR that you had to have... wait... Now I have to buy a Analog to Digital system that ranges from 80 to 500 so I can use this Analog camera that cost me loads of Cash..
I come from long back ground of DVR's lol... I have a NVR amcrest,, Infact if I wanted I could have 2 but I leave that DVR in 4 analog and 4ip mode it does have Option for 8ip but... Wait... A DVR Amcrest OLD TECH DVR that has 4 analog in and 4 IP that has the Ability to to 8IP... would love to see a NVR that could go from 8 ch IP to 8 analog or even 1 or 2 lol.. Not going to happen....
Interesting Post.. Sadly it is little behind times...
Just so you know over TVI and Over "CVI that Amcrest" here uses they have Ultra HD Camera systems upto 4k 8MP and other offer even higher over Coax as well...NVR systems (Network Video Recorder) run either via ethernet cables or wireless. Higher picture quality (720p, 1080p) can be achieved by NVR compared to DVR.
WOW did you know that there is Tech out there that you can have now power and Video over Coax while I don't know of any of Amcrest that can at this time the TECH is out there... did you also know that while my PTZ cameras that are OVER THE HILL yes do require more then there share of wires for control like Power, RS-485 and then Coax or Cat5 for video however that is OLD TECH I have some other cameras that only needs Power and Video I can use the Coax to access the RS-485 without extra wires that is still old TECH...[DVR] cables are not ethernet, mostly its a two core wire for signal, and u need an additional cable for power. [NVR] cables are ethernet if you go with the wired option. Also there are PoE (Power over Ethernet) meaning both power and signal can be sent through one ethernet cable. You could also opt in for wireless at the time of purchase.
DVR or NVR what is easier to setup? DVR Safer because you only have 1 IP to worry about hacking... POE NVR is safer then a normal NVR however I have a POE Switch and my NVR still safe as I don't have to worry about outside people gaining access to my NETWORK.. However that isn't 100% true... POE NVR would be safer then my setup because NO access to cameras past NVR so it is like my DVR's that only has 1IP to the Network....
1TB for 8 cameras at 1080P with Both Normal and Sub Streams also Recording Motion JPG your looking at 3 days of record time at full 30FPS if your machine could even do that...
Also DVR and NVR there is NO one easier to setup over the other one... other then the DVR you only have to Plug on the Cameras and Bam they are recording...
DOWN fall of the NVR in my MIND.... I have 8 ch NVR... I have 8 cameras that come up on my list of cameras to add. I add them now I have to go in and change all the Passwords to reflect the camera password... Then before you can even get to the 8th camera your camera locks you out because your NVR tried to access it to many times with the Default Password.....
I setup my DVR cameras, I have all my cables run, I plug in my BNC to the back of my DVR, Wire down my Cameras to my Power Distribution Center either 12vDC or 24VAC depending on where the camera is and if it is dual voltage as most of mine are.... Plug them in turn on the DVR and every ch comes online and starts recording out of the box.... No need to go and type in a bunch of Passwords.... I can install 2 16ch DVR's and 32 cameras and have them up and recording by the time I could install and setup to record over a 16ch NVR and 16 cameras.... Biggest Block on an NVR is the constant typing in a Password every time I want to change something.....
Want to make change to my Motorized Camera on my DVR... Press the PTZ button click the Iris, down or up to get to menu item I want, make the change... press the iris button again then click on end and done it saved...
NVR I want to make changes. Press the PTZ type in password click on Menu hummm nothing lol... oh yeah wait I have to log into the camera, Bring up IE, Chrome or some other Browers, Put in IP address wait I have so many cameras what was that IP again.... Oh well here it is ok now Put in IP bring up Setup wow there is a lot in here... HUMM things I will NEVER USE... Yeah Ok so there is the Fact that you can use your KEYBOARD on your computer to do things that you don't really have access on your DVR or wait SURE YOU do use the CMS software even can name your Preset lol... Man to much work... Why do I want to spend 100 hours making setup changes that I can just use my DVR to make changes over my cameras that is even if my Cameras offer menus as loads of my DVR cameras aka Analog cameras don't even offer any menus... If they do I can access them over Coax or over my RS-485 controller... Either way it is much faster and easier to access DVR and DVR cameras then it is over a NVR an IP cameras.... But wait did you know I have even 1 more thing... My dvr also offers the ability to use IP camera so my 16ch DVR is not 16 ch when I add 2 IP cameras I have 18ch DVR... However lets look at using a Cool Analog camera on your NEW NVR that you had to have... wait... Now I have to buy a Analog to Digital system that ranges from 80 to 500 so I can use this Analog camera that cost me loads of Cash..
I come from long back ground of DVR's lol... I have a NVR amcrest,, Infact if I wanted I could have 2 but I leave that DVR in 4 analog and 4ip mode it does have Option for 8ip but... Wait... A DVR Amcrest OLD TECH DVR that has 4 analog in and 4 IP that has the Ability to to 8IP... would love to see a NVR that could go from 8 ch IP to 8 analog or even 1 or 2 lol.. Not going to happen....
Be Safe.